Trane Odyssey 6 To 25 Tons Installation And Maintenance Manual Air Handlers

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Installation, Operation,
and Maintenance

Split System Air Conditioners
Odyssey™
™
Air Handler — 5 to 25 Tons
Model (60 Hz)
TWE061D/E***A
TWE090D/E**BA
TWE120D/E**BA
TWE150E**BA
TWE180E**BA
TWE240E**BA
TWE300E**BA

Model (50 Hz)
TWE051D***A
TWE076D/E***A
TWE101D/E***A
TWE126E***A
TWE156E***A
TWE201E***A
TWE251E***A

S A F E T Y WA R N I N G
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and
air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered
equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the
literature and on the tags, stickers, and labels that are attached to the equipment.

March 2015

SSA-SVX06E-EN

Introduction
Read this manual thoroughly before operating or
servicing this unit.

Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required. Your personal safety and the proper
operation of this machine depend upon the strict
observance of these precautions.
The three types of advisories are defined as follows:

WARNING

CAUTION

NOTICE

WA R N I N G
Prope r Fi el d Wi ring a nd Groundi ng
Required!
All field w ir in g MUST be p er for med b y qualif ied
per sonnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION
h a z a r d s . To a v o i d t h e s e h a z a r d s , y o u M U S T f o l l o w
requirements for field wiring installation and
grounding as described in NEC and your local/
state electrical codes.

Indicates a potentially hazardous situation
which, if not avoided, could result in death or
serious injury.
Indicates a potentially hazardous situation
which, if not avoided, could result in minor or
moderate injury. It could also be used to alert
against unsafe practices.
Indicates a situation that could result in
equipment or property-damage only
accidents.

Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are
refrigerants that contain Chlorine, Fluorine and Carbon
(CFCs) and those containing Hydrogen, Chlorine,
Fluorine and Carbon (HCFCs). Not all refrigerants
containing these compounds have the same potential
impact to the environment. Trane advocates the
responsible handling of all refrigerants-including
industry replacements for CFCs such as HCFCs and
HFCs.

WA R N I N G
Pe r s o n a l P r o t e c t i v e E q u i p m e n t ( P P E )
Required!
Te ch n i c i a n s , i n o r d e r t o p r o t e c t t h e m s e l v e s f r o m
p o t e n t i a l e l e c t r i c a l , m e ch a n i c a l , a n d ch e m i c a l
h azards, MUST follow pr ecaut io ns in th is man ual
a n d o n t h e t a g s , s t i ck e r s , a n d l a b e l s , a s w e l l a s t h e
instructions below:
•

Before installing/servicing this unit,
t e ch n i c i a n s M U ST p u t o n a l l P P E r e q u i r e d f o r
t h e w o r k b e i n g u n d e rt a k e n ( E x a m p l e s ; c u t
r e s i s t a n t g l ov e s / s l e e v e s , b u t y l g l ov e s , s a f e t y
glasses, hard hat/bump cap, fall protection,
electrical PPE and arc flash clothing).
A LWAY S r e f e r t o a p p r o p r i a t e M a t e r i a l Sa f e t y
Dat a Sheets ( MSDS)/Saf et y Data Sh eets
(SDS) and OSHA guidelines for proper PPE.

•

When working with or around hazardous
ch e m i c a l s , A LWAY S r e f e r t o t h e a p p r o p r i a t e
MSDS/SDS and OSHA/GHS (Global
H a r m o n i ze d Sy s t e m o f C l a s s i f i c a t i o n a n d
Labelling of Chemicals) guidelines for
in for mat io n on a ll owa bl e pe r s ona l e x pos ur e
levels, proper respiratory protection and
handling instructions.

•

If there is a risk of energized electrical
c o n t a c t , a r c , o r f l a s h , t e ch n i c i a n s M U S T p u t
o n a l l P P E i n a c c o r d a n c e w i t h O S H A , N F PA
7 0 E , o r o t h e r c o u n t r y- s p e c i f i c r e q u i r e m e n t s
for arc flash protection, PRIOR to servicing
the unit. NEVER PERFORM ANY SWITCHING,
D I S C O N N E C T I N G , O R VO LTA G E T E ST I N G
WITHOUT PROPER ELECTRICAL PPE AND
A R C F L A S H C LO T H I N G . E N S U R E
E L E C T R I C A L M E T E R S A N D E Q U I P M E NT A R E
P R O P E R LY R AT E D F O R I NT E N D E D VO LTA G E .

Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the
air conditioning industry. All technicians who handle
refrigerants must be certified. The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
must also be adhered to for responsible management
of refrigerants. Know the applicable laws and follow
them.

©2015 Trane

All rights reserved

SSA-SVX06E-EN

Introduction

WA R N I N G
Re f r i g e r a n t u n de r H i g h Pr e s s u r e !
Sy s t e m c o n t a i n s o i l a n d r e f r i g e r a n t u n d e r h i g h
pre ssu re . Recove r r ef ri ge ra nt to re li e ve pre ssu re
befor e op en in g t he system. See u nit namep late for
re fri ge ra nt ty pe . Do no t u se non -a pp rove d
refrigerants, refrigerant substitutes, or refrigerant
additi ves.

WA R N I N G
R - 4 10 A R e f r i g e r a n t u n d e r H i g h e r
Pr e s s u r e t h a n R - 2 2 !
T h e u n i t s d e s c r i b e d i n t h i s m a n u a l u s e R - 4 10 A
r e f r i g e r a n t w h i ch o p e r a t e s a t h i g h e r p r e s s u r e s
t h a n R - 2 2 . U s e O N LY R - 4 10 A r a t e d s e r v i c e
eq ui pm e nt or c om p one nt s w it h the s e un it s. For
s p e c i f i c h a n d l i n g c o n c e r n s w i t h R - 4 10 A , p l e a s e
c o n t a c t y o u r l o c a l Tr a n e r e p r e s e n t a t i v e .

Copyright
This document and the information in it are the
property of Trane, and may not be used or reproduced

SSA-SVX06E-EN

in whole or in part without written permission. Trane
reserves the right to revise this publication at any time,
and to make changes to its content without obligation
to notify any person of such revision or change.

Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.

Revision History
•

With the change to Microchannel, the Odyssey split
system now offers a 50Hz, 6.25 standard air handler
(TWE076E) and a 60Hz, 7.5 ton standard/SZVAV/2Speed VFD air handler (TWE090E). See
performance data for additional details on this new
split system.

•

Odyssey air handlers now have the ability to
convert from Single Zone VAV to 2–Speed Fan
control in order to comply with certain sections of
California Title 24 and ASHRAE 90.1. See
“Installation, 2-Speed VFD Units,” p. 25 for
configuration details.

3

Table of Contents
Model Number Description . . . . . . . . . . . . . . . . . 5
Air Handler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

General Information . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Air Flow Settings . . . . . . . . . . . . . . . . . . . . . . . .
Standard Units. . . . . . . . . . . . . . . . . . . . . . .
SZVAV Units . . . . . . . . . . . . . . . . . . . . . . . . .
2-Speed VFD Units . . . . . . . . . . . . . . . . . . .
Minimum Supply Fan Output . . . . . . . . .

24
24
24
25
25

Electrical Connections . . . . . . . . . . . . . . . . . . . 26

Testing for Leaks. . . . . . . . . . . . . . . . . . . . . . . . . . 7

Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
EDC Switch Wiring . . . . . . . . . . . . . . . . . . . 27
Heating and Cooling Setpoint
Arbitration . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Lifting Recommendations . . . . . . . . . . . . . . . . . 7

Checkout Procedure . . . . . . . . . . . . . . . . . . . . . 28

Repositioning Drain Pan. . . . . . . . . . . . . . . . . . . 7

Installation Checklist . . . . . . . . . . . . . . . . . . . . . 28

Field Conversion to 460 Volt . . . . . . . . . . . . . . . 9
Converting Motor to 460 Volt . . . . . . . . . . . 9

Thermostat and Control
Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Electromechanical Controls . . . . . . . . . . . 29
ReliaTel Controls . . . . . . . . . . . . . . . . . . . . . 29

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Inspection Checklist . . . . . . . . . . . . . . . . . . . 7

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . 9
Reorienting Evaporator Coil
(TWE126/150 and 156/180) . . . . . . . . . . . . . 9
Preparation for Refrigerant
Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installations, Limitations and
Recommendations. . . . . . . . . . . . . . . . . . . . . . . 10

Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . 11

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
60 Hz Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
50 Hz Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Air Handler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Sequence of Operation. . . . . . . . . . . . . . . . . . . 42
Variable Air Volume Applications
(SZVAV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2–Speed VFD Applications . . . . . . . . . . . . 43

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Horizontal Suspension . . . . . . . . . . . . . . . . . . . 22
Leveling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Auxiliary Drain Pan. . . . . . . . . . . . . . . . . . . 22

Fan Belt Adjustment . . . . . . . . . . . . . . . . . . . . . 44

Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . 22
Condensate Piping. . . . . . . . . . . . . . . . . . . . . . . 23
Filter Replacement . . . . . . . . . . . . . . . . . . . . . . . 23
Duct Connections. . . . . . . . . . . . . . . . . . . . . . . . 24

4

Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Annually (Cooling Season) . . . . . . . . . . . . . . . 45
Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Maintenance Log . . . . . . . . . . . . . . . . . . . . . . . . 46

Wiring Diagram Matrix . . . . . . . . . . . . . . . . . . . . 47

SSA-SVX06E-EN

Model Number Description
Air Handler
T WE

2 40

E

D

00

*

*

123

456

7

8

9 10

11

12

T WE

201

E

D

00

*

*

123

456

7

8

9 10

11

12

N o t e : When ordering replacement parts or requesting
service, be sure to refer to the specific model
number, serial number, and DL number (if
applicable) stamped on the unit nameplate.
D I G I T S 1 - 3 : Pr o d u c t Ty p e
TWE = Split System Heat Pump/Cooling Air Handler
DIGITS 4 - 6: Nominal Gross Cooling Capacity
(MBh)
061 = 5 Tons (60 Hz)
090 = 7.5 Tons (60 Hz)
120 = 10 Tons (60 Hz)
150 = 12.5 Tons (60 Hz)
180 = 15 Tons (60 Hz)
240 = 20 Tons (60 Hz)
300 = 25 Tons (60 Hz)
051 = 4.6 Tons (50 Hz)
076 = 6.25 Tons (50 Hz)
101 = 8.33 Tons (50 Hz)
126 = 10.4 Tons (50 Hz)
156 = 13.0 Tons (50 Hz)
201 = 16.7 Tons (50 Hz)
251 = 20.9 Tons (50 Hz)
DIGIT 7: Major Develo pment Seq uence

1.

D = Single Refrigeration Circuit
E = Dual Refrigeration Circuit
DIGIT 8: Electrical Characteristics
3 = 208–230/60/3
4 = 460/60/3
W = 575/60/3
D = 380-415/50/3
K = 380/60/3
D I G I T S 9 - 10 : F a c t o r y I n s t a l l e d O p t i o n s
00 = Packed Stock (Standard)
03 = 2-Speed Variable Frequency Drive (VFD) standard
motor (electromechanical condenser only)
04 = 2-Speed Variable Frequency Drive (VFD) oversized
motor (electromechanical condenser only)
R3 = Single Zone Variable Air Volume (VFD) standard
motor - (ReliaTel condenser only)
R4 = Single Zone Variable Air Volume (VFD) oversized
motor - (ReliaTel condenser only)
D I G I T S 11 : M i n o r D e s i g n S e q u e n c e
* = Current Design Sequence1
D I GI TS 12 : Serv i c e D ig it
* = Current Design Sequence1

* = sequential alpha character

SSA-SVX06E-EN

5

General Information
This manual describes proper installation, operation,
and maintenance procedures for air cooled systems. By
carefully reviewing the information within this manual
and following the instructions, the risk of improper
operation and/or component damage will be
minimized. It is important that periodic maintenance be
performed to help assure trouble free operation.
Should equipment failure occur, contact a qualified
service organization with qualified, experienced HVAC
technicians to properly diagnose and repair this
equipment.
I m p o rt a n t : All phases of this installation must comply
with the NATIONAL, STATE & LOCAL
CODES. In addition to local codes, the
installation must conform with National
Electric Code -ANSI/NFPA NO. 70 LATEST
REVISION.
Any individual installing, maintaining, or servicing this
equipment must be properly trained, licensed and
qualified.
I m p o rt a n t : Do not remove the VFD without first
contacting technical support! For
performance-related questions and
diagnostic support in North America call 1877-872-6363. Any return requires a claim
number FIRST. Removal of the VFD prior to
this step will void the unit’s warranties.
Installation procedures should be performed in the
sequence that they appear in this manual. Do not
destroy or remove the manual from the unit. The

6

manual should remain weather-protected with the unit
until all installation procedures are complete.
N o t e : It is not the intention of this manual to cover all
possible variations in systems that may occur or
to provide comprehensive information
concerning every possible contingency that may
be encountered during an installation. If
additional information is required or if specific
problems arise that are not fully discussed in this
manual, contact your local sales office.
Use the installation checklist provided In this manual to
verify that all necessary installation procedures have
been completed. Do not use the checklist as a
substitute for reading the information contained in the
manual. Read the entire manual before beginning
installation procedures.

Unit Description
These air handler models incorporate a single slab coil
assembly, improved application flexibility, servicing,
maintenance accessibility and an improved accessory
line. They are fully convertible, (vertical to horizontal
discharge) without field removal of the coil assembly.
They are shipped ready for horizontal installation.
All units have one drain pan that can be installed in any
one of four positions. This allows for vertical or
horizontal applications and right or left exit.
I m p o rt a n t : All dual circuit (digit 7 = E) have an
intertwined coil, except for the 25 ton,
TWE251 and TWE300 units.

SSA-SVX06E-EN

Pre-Installation
The final position for the air handler must be dictated
by required service access to it, weight distribution
over structural supports, and by the locations of
electrical, refrigerant and condensate drainage
connections. After this is determined, the following
preparations should be made.

Unit Inspection
Inspect material carefully for any shipping damage. If
damaged, it must be reported to, and claims made
against the transportation company. Compare the
information that appears on the unit nameplate with
ordering and submittal data to ensure the proper unit
was shipped. Available power supply must be
compatible with electrical characteristics specified on
component nameplates. Replace damaged parts with
authorized parts only.

Inspection Checklist
To protect against loss due to damage incurred in
transit, complete the following checklist upon receipt of
the unit.
Inspect individual pieces of the shipment before
accepting the unit. Check for obvious damage to the
unit or packing material.
Inspect the unit for concealed damage before it is
stored and as soon as possible after delivery.
Concealed damage must be reported within 15
days. If concealed damage is discovered, stop
unpacking the shipment. Do not remove damaged
material from the receiving location. Take photos of
the damage if possible. The owner must provide
reasonable evidence that the damage did not occur
after delivery.
Notify the carrier’s terminal of damage immediately
by phone and by mail. Request an immediate joint
inspection of the damage by the carrier and the
consignee.
Notify the sales representative and arrange for
repair. Do not repair the unit until the damage is
inspected by the carrier’s representative.

Testing for Leaks
All TWE units are shipped with a holding charge of
nitrogen in each circuit and should be leak tested
before installation.
1. Remove the access panel.
2. Locate the liquid line or suction line access valve for
each circuit.
3. Install gauges to determine if the circuits are still
pressurized. If not, the charge has escaped and
should be repaired as required to obtain a leak-free
circuit.
SSA-SVX06E-EN

Lifting Recommendations
WA R N I N G
I m p r o p e r U n i t L i ft !
Te s t l i ft u n i t a p p r o x i m a t e l y 2 4 i n ch e s t o v e r i f y
p r o p e r c e n t e r o f g r a v i t y l i ft p o i n t . To a v o i d
d r o p p i n g o f u n i t , r e p o s i t i o n l i ft i n g p o i n t i f u n i t i s
not level.

N OT I C E
Equipment Damage!
Use spreader bar s to prevent straps from
d a m a g i n g t h e u n i t . I n s t a l l t h e b a r s b e t w e e n l i ft i n g
s t r a p s , b o t h u n d e r n e a t h t h e u n i t a n d a b ov e t h e
unit to prevent the straps from crushing the unit
cabinet or damaging the finish.
Before preparing the unit for lifting, estimate the
approximate center of gravity for lifting safety. Because
of placement of internal components, the unit weight
may be unevenly distributed. See “Weights,” p. 20 for
approximate unit weights.
The crated unit can be moved using a forklift of suitable
capacity. For lifting the unit into an elevated mounting
position, run lifting straps or slings under the unit and
attach securely to the lifting device.

Repositioning Drain Pan
Air handlers come with one drain pan that can be
installed in any one of four positions; this allows for
vertical or horizontal application and right or left
condensate line connection.
N o t e : Important! All air handlers are shipped with the
drain pan installed in the horizontal position and
the connection on the left side (as shown in
Figure 1, p. 8. If an alternate position is required,
the drain pan should be repositioned before
setting the air handler.
1. Remove the access plate at the opposite end of the
drain connection. This plate secures and lifts the
back end of the drain pan for sloping. It must be
removed before the drain pan can be removed. This
is done as follows:
a. Remove the screw
b. Lift the access plate up
c. Pull the plate out. If the drain pan is to be moved
to the vertical position also remove the other
two access plates.
2. Remove the screw securing the drain pan.
a. Lift the pan up
b. Slide the pan out
3. Install the drain pan into the new position.
7

Pr e - In s ta l l a ti o n

a. Slide the drain pan into the opening

Figure 2. Drain pan relocation

b. Lift the drain pan up
c. Push it in all the way
d. Drop it down over the lip of the opening, secure
with screw
4. Install the access plate on the opposite end of the
drain pain.
a. Slide the edge of the access plate under the
drain pan
b. Lift the access plate and drain pan up
c. Push the access plate in
d. Drop the access plate down over the lip of the
opening, secure with screw
N o t e : If the drain pan is being moved to the vertical
position, install the other access plates over
the horizontal position opening
Figure 1. Drain pan location

N OT I C E
Syste m Component Dam age!
These air handler s are shipped with a dry nitrogen
h o l d i n g ch a r g e i n t h e c o i l . D e p r e s s o r r e m ov e t h e
a c c e s s v a l v e c o n e t o b l e e d o ff t h e n i t r o g e n p r i o r t o
b r a z i n g . Te m p o r a r i l y c a p o ff t u b e s i f t h e
r e f r i g e r a n t l i n e c o n n e c t i o n s a r e t o b e m a d e l a t e r.

8

SSA-SVX06E-EN

Pre-Installation

Field Conversion to 460 Volt
WA R N I N G
H a z a r d o u s Vo l t a g e w / C a p a c i t o r s !
D i s c o n n e c t a l l e l e c t r i c p o w e r, i n c l u d i n g r e m o t e
d i s c o n n e c t s a n d d i s ch a r g e a l l m o t o r s t a rt / r u n
c a p a c i t o r s b e f o r e s e r v i c i n g . F o l l o w p r o p e r l o ck o u t /
tagout procedures to ensure the power cannot be
i n a d v e rt e n t l y e n e r g i z e d . F o r v a r i a b l e f r e q u e n c y
dri ves or other energy storing components
p r o v i d e d b y Tr a n e o r o t h e r s , r e f e r t o t h e
a p p r o p r i a t e m a n u f a c t u r e r ’s l i t e r a t u r e f o r
a l l o w a b l e w a i t i n g p e r i o d s f o r d i s ch a r g e o f
c a p a c i t o r s . Ve r i f y w i t h a n a p p r o p r i a t e v o l t m e t e r
t h a t a l l c a p a c i t o r s h a v e d i s ch a r g e d .
For ad di ti on al i n for m at io n rega rdi ng t he s a fe
d i s ch a r g e o f c a p a c i t o r s , s e e P R O D - S V B 0 6 A - E N .

Figure 3. Voltage change plug
VIE W O F TER MI N AL EN D
To ch a n g e vo lt a g e , p u ll p lu g , ro t a t e 1 8 0 ° a n d re in s e rt

MARATHON™

HIGH

LOW

To ch a n g e vo lt a g e , p u ll s e le ct o r p lu g o u t , s h ift p lu g
t o a lig n a rro w t o 4 6 0 V fo r h ig h vo lt a g e o r 2 3 0 V fo r
lo w vo lt a g e a s d e s ire d . Pu s h p lu g b a ck in .

GENERAL
ELECTRIC™

•

Available power supply must agree with electrical
data on component nameplate.

•

Some standard air handlers are shipped wired for
208-230 volt applications and can be converted for
460 volt by rewiring the blower motor. (This
includes models TWE090D3, TWE090E3,
TWE120D3, TWE120E3, TWE150E3 and TWE180E3).

Converting Motor to 460 Volt
1. Ensure power is disconnected to unit by following
the warning above.
2. Remove unit access panels closest to motor.
3. Open terminal cover on lead end of motor.
4. Pull voltage selector plug from low voltage
selection (see Figure 3, p. 9).
5. Shift the plug (or rotate 180°) to align plug for high
voltage selection and re-insert plug.
I m p o rt a n t : When re-inserting voltage selection
plug, ensure it is fully seated.

ve r

A l l f i e l d w i r i n g M U ST b e p e r f o r m e d b y q u a l i f i e d
per sonnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION
h a z a r d s . To a v o i d t h e s e h a z a r d s , y o u M U ST f o l l o w
requirements for field wiring installation and
grounding as described in NEC and your local/
state electrical codes.

460V

WA R N I N G
Pr o p e r F i e l d W i r i n g a n d G r o u n d i n g
Re q u i r e d!

HIGH

LOW

Co n n e ct lin e s t o L1 , L2 , L3
To re ve rs e ro t a t io n , in t e rch a n g e a n y t wo lin e co n n e ct io n s

Refrigerant Piping
Reorienting Evaporator Coil (TWE126/
150 and 156/180)
I m p o rt a n t : Applies to TWE126/150 and 156/180 when
positioned for vertical upflow. Unit is
shipped in the horizontal position. If
installing in the v e rt i c a l p o s i t i o n , the coil
m u s t b e reoriented by rotating the coil 4
degrees (control box side) from the
shipped position.
1. Remove screws from top evaporator coil bracket
(bracket that attaches coil to cabinet and runs the
length of the unit).
2. Rotate evaporator coil approximately 4 degrees
clockwise - looking from the control box end. When
the evaporator coil is rotated, the lower set of
evaporator coil bracket holes will align with the
support bracket (from which it was originally
fastened).
3. Reinsert screws in evaporator coil bracket.

6. Replace terminal cover on lead end of motor.
7.

Replace unit access panels.

SSA-SVX06E-EN

9

Pr e - In s ta l l a ti o n

Figure 4. Evaporator coil reorientation for TWE126,
150, 156, 180

Installations, Limitations and
Recommendations
N OT I C E
Syste m Component Dam age!
Pr o p e r l y i n s u l a t e a l l r e f r i g e r a n t ga s p i p i n g t o
p rev e nt po ss i bl e wa te r d a mag e due to
condensation and to prevent capacity loss and
possible compressor damage.
The general location of the air handler is normally
selected by the architect, contractor and/or buyer. For
proper installation, the following items must be
considered:

Top bracket screws

Rotate 4°
clockwise

Preparation for Refrigerant Piping

N OT I C E

•

Available power supply must agree with electrical
data on component nameplate.

•

If external accessories are installed on the unit,
additional clearances must be provided.

•

All duct work should be properly insulated to
prevent condensation and heat loss.

•

Refrigerant gas piping must be insulated.

Equipment Damage!
Do n ot a ppl y h ea t to re move se al ca ps un ti l th e
ga u g e p o rt c o r e s h a v e b e e n r e m o v e d . I f s e a l c a p s
are intact, application of heat may generate
excessi ve pressure in the unit and result in
damage to the coil or expansion valve.
The air handler is designed so that refrigerant piping
can enter from either the right or left hand side. It is
shipped with the intent that the refrigerant lines will
enter from the left hand side. To convert to right hand
entry, unbraze the elbow on the suction line and rotate
180° and rebraze.
I m p o rt a n t : Access to refrigerant lines is limited in all
horizontal and some vertical applications.
Therefore, refrigerant lines should be
stubbed out and temporarily capped prior
to setting the air handler. Protect adjacent
surfaces from heat damage when brazing
in and around the air handler.

10

It is recommended that the outline drawings in the
Dimensional Data section be studied and dimensions
properly noted and checked against the selected
installation site. By noting in advance which features
are to be used, proper clearance allowances can be
made for installation and possible future service.
I m p o rt a n t : When installing these units “free standing”
with discharge grills and isolators, a top
support with isolator should be added to
prevent tipping. Support and isolator can
be attached to a wall or other appropriate
structure.
If adding external accessories to the unit,
additional clearances must be considered
for the overall space needed.
For installation of accessories available for this air
handler, follow the installation instructions that are
shipped with each accessory.

SSA-SVX06E-EN

Dimensional Data
Figure 5. Height, width and depth measurements

H

W
D
Model Number

H - in. (mm)

W - in. (mm)

D - in. (mm)

TWE051, 061

48-1/8 (1222.4)

39-5/8 (1006.5)

23-5/8 (600.0)

TWE076, 090

54-1/8 (1374.8)

49-1/8 (1247.8)

26-1/2 (673.1)

TWE101, 120

54-1/8 (1374.8)

65-1/8 (1654.2)

26-1/2 (673.1)

TWE126, 150, 156, 180

69-1/8 (1756.0)

81-1/4 (2063.7)

30 (762.0)

TWE201, 240, 251, 300

71-7/8 (1806.6)

94-1/4 (2394.0)

32-1/8 (816.0)

Note: Full dimensional data is available on the following pages.

SSA-SVX06E-EN

11

Dimensional Data

Figure 6. 4.6, 5 ton air handler, single circuit
.50" (12.7)
DUCT FLANGE
1" (25.4)
HEIGHT

NOTES :
1. P ANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCES S P LATE ON THE END OF UNIT OPP OS ITE DRAIN CONNECTION MUST BE REMOVED TO
S LIDE DRAIN P AN OUT OF UNIT FOR CLEANING. ACCESS P LATE MUS T BE RE-INS TALLED AFTER
S LIDING DRAIN P AN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR P ARTIAL REMOVAL OF
DRAIN P AN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

22 5/8"
(574.7)
16 1/4"
(412.8)

.77"
(19.6)

6 15/16" (176.2)

24 1/16"
(611.2)

S UP P LY
OP EN

37 15/16"
(963.6)

12 7/16"
(315.9)

7 9/16"
(192.1)
HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES
6 7/8"
(174.6)

HEATER
VENTILATION

2 5/16"
(58. 7)

1 3/4"
(44.45)

3 9/16"
(90.5)
2 3/4"
(69.9)

22 5/8"
(574.7)

CONTROL WIRING

13 5/16"
(338.14)

BOTTOM RETURN

S IDE RETURN

32 1/2"
(825.5)

32 1/2"
(825.5)

2 3/4"
(69.9)

3 7/16" (87.3)
5 15/16"
(150. 8)

LINE VOLTAGE

COP P ER LIQUID LINE
FIELD CONNECTION
13 3/16" (335)

CONTROL BOX
ACCES S P ANEL
COPP ER S UCTION LINE
FIELD CONNECTION

1 11/16"
(42. 9)

REMOTE BULB TXV

DRAIN CONNECTION
FOR HORIZONTAL
(S EE NOTE 2,3,5)

1 3/8" (34.9) O.D. SUCTION LINE

20 1/16"
(509. 6)

13 9/16" 12"
(344.5) (304.8)

12" 13 9/16" (344.5)
(304. 8)

.99" (25.15)
.99" (25.15)

FILTER ACCES S P ANEL
22" (558.8) MIN. DISTANCE
BOTH S IDE

S EE NOTES 2,3,4
1 3/8"
(34.9)

1 3/8" (34.9)

LIQUID LINES

3 3/16" (81)

S EE NOTES 2,3,4

1 1/8"
(28. 6)

(4) - HOLE FOR HORIZONTAL
S US P ENS ION
35 5/8"
(904. 9)

S UP P LY OP ENING

3" (76.2)

(4) - HOLE FOR HORIZONTAL
S US P ENS ION
BOTTOM RETURN

34 9/16"
48 1/16" (877. 9)
(1220. 8)

S IDE RETURN

FILTER
10 7/16"
(265. 1)

BOTTOM RETURN
S UP P LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

12

S IDE RETURN
S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

SSA-SVX06E-EN

Dimensional Data

Figure 7. 5 ton air handler, dual circuit
.50" (12.7)
DUCT FLANGE
1" (25.4) HEIGHT

NOTES :
1. PANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCESS P LATE ON THE END OF UNIT OP P OS ITE DRAIN CONNECTION MUS T BE REMOVED TO
S LIDE DRAIN P AN OUT OF UNIT FOR CLEANING. ACCES S P LATE MUS T BE RE-INSTALLED AFTER
S LIDING DRAIN P AN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR PARTIAL REMOVAL OF
DRAIN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE SCHED. 40 (10.2) P VC P IPE DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE SCHED. 40 (10.2) P VC P IP E DRAIN CONNECTION HO RIZONTAL CONFIGURATION.

22 5/8"
(574. 7)
.77" (19.6)
16 1/4"
(412. 8)

6 15/16"
(176. 2)

24 1/16"
(611. 2)

S UP P LY
OP EN

37 15/16"
(963. 6)

7 9/16"
(192. 1)
HEATER CONTROL
AND SINGLE P OWER
ENTRY WIRES

2 5/16"
(58. 7)

3 9/16"
(90. 5)

6 7/8"
(174. 6)

HEATER
VENTILATION

12 7/16"
(315. 9)

CONTROL WIRING

1 3/4"
(44.45)

1 13/16"
(46. 04)
2 3/4"
(69.8)

22 5/8"
(574. 7)

32 1/2"
(825.5)

2 3/4"
(69.8)

32 1/2"
(825.5)

3 7/16" (87.3)
COP P ER LIQUID LINE
FIELD CONNECTION

5 15/16"
(150. 8)
13 3/16" (335)

LINE VOLTAGE
CONTROL BOX
ACCES S P ANEL
1 11/16"
(42. 9)

COP P ER S UCTION LINE
FIELD CONNECTION

(2) REMOTE BULB TXV

DRAIN CONNECTION
FOR HORIZONTAL
(S EE NOTE 2,3,5)

S UCTION LINE

20 1/16"
(509. 6)

16 1/8"
12" 13 9/16" (409. 6)
(304. 8) (344. 5)

FILTER ACCES S P ANEL
22" (558.8) MIN. DIS TANCE
BOTH S IDE

17 5/16"
(439. 7)

17 5/16"
16 1/8" 13 9/16"
(439.7)
12"
(409.6) (344.5)
(304.8)

17 7/8"
(454)

COP P ER LIQUID LINE
FIELD CONNECTION

.99" (25.15)

.99" (25.15)

S EE NOTES 2,3,4

1 3/8" (34.9)
1 3/8" (34.9)

1 11/16" (42.9)
LIQUID LINES

3 3/16" (81)

S EE NOTES 2,3,4

3 11/16" (93.7)

1 11/16" (42.9)
(4) - HOLE FOR HORIZONTAL
S US P ENS ION

3 11/16" (93.7)
S UP P LY OP ENING

1 1/8"
(28. 6)

13 5/16"
(338.14)

BOTTOM RETURN

S IDE RETURN

35 5/8"
(904. 9)

(4) HOLE FOR
HORIZONTAL
S US P ENS ION

BOTTOM RETURN
3" (76.2)
S IDE RETURN

48 1/16"
(1220. 8)

34 9/16"
(877. 9)
FILTER

DRAIN CONNECTION
BOTTOM RETURN
10 7/16"
(265. 1)

SSA-SVX06E-EN

SIDE RETURN
S UPP LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

13

Dimensional Data

Figure 8. 6.25, 7.5 ton air handler, single circuit
NOTES :
1. PANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCES S P LATE ON THE END OF UNIT OPP OS ITE DRAIN CONNECTION MUST BE REMOVED TO
SLIDE DRAIN P AN OUT OF UNIT FOR CLEANING. ACCES S P LATE MUS T BE RE-INS TALLED AFTER
SLIDING DRAIN P AN BACK INTO UNIT.
3. IF PERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR P ARTIAL REMOVAL OF
DRAIN P AN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

25 1/2"
(647. 7)
DUCT FLANGE
1" (25.4)
HEIGHT

16 1/4"
(412. 8)

.70"
(17. 8)

11 11/16"
(296. 8)

24 1/16"
(611. 2)

47 1/2"
(1206. 5)

S UP P LY
OP EN

12 5/16"
8 5/16"
(312. 7)
(211. 1)

HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES

16 1/16"
(408)

16 7/8"
(428.6)

SIDE RETURN

BOTTOM RETURN

2 1/4" (57.15)

HEATER
VENTILATION

1 9/16"
(39. 7)

6 13/16"
(173)

CONTROL WIRING

1 13/16"
(46)
42"
(1066.8)

2 3/4"
(69.85)

25 1/2"
(647. 7)

42"
(1066.8)

2 3/4"
(69.85)

3 1/2" (88.9)
LINE VOLTAGE
COP P ER LIQUID LINE
FIELD CONNECTION

8 13/16" (223.8)
16"
(406. 4)

CONTROL BOX
ACCESS P ANEL
1 3/16" (30.2)
DRAIN CONNECTION
FOR HORIZONTAL
(SEE NOTE 2,3,5)

22 7/8"
(581)

FILTER ACCES S PANEL
22" (558.8) MIN. DIS TANCE
BOTH SIDE

COPP ER S UCTION LINE
FIELD CONNECTION

REMOTE BULB TXV
S UCTION LINE

16 11/16" 17 7/16"
(442. 9)
(423. 9)

20"
(508)

17 3/8"
(441.3)

16 11/16"
(423.9)

3 5/8" (92.1)

1 9/16" (39.7)

1 11/16" (42.9)

3 1/2" (88.9)

S EE NOTES 2,3,4

LIQUID LINES
S EE NOTES 2,3,4
1 3/16" (30.16)

45 1/8"
(1146. 2)

(4) - HOLE FOR
HORIZONTAL S USP ENS ION
(4) HOLE FOR
HORIZONTAL
SUS PENSION

S UP P LY OP ENING

6 3/4"
(171. 45)

BOTTOM RETURN
54 1/16"
(1373. 2)

36 7/8"
(936. 6)

SIDE RETURN

FILTER

10 7/16"
(265. 1)

BOTTOM RETURN
S UP P LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

14

S IDE RETURN
S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

SSA-SVX06E-EN

Dimensional Data

Figure 9. 6.25, 7.5 ton air handler, dual circuit
NOTES :
1. P ANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCES S PLATE ON THE END OF UNIT OP P OS ITE DRAIN CONNECTION MUS T BE REMOVED TO
S LIDE DRAIN PAN OUT OF UNIT FOR CLEANING. ACCES S P LATE MUST BE RE-INS TALLED AFTER
S LIDING DRAIN PAN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR P ARTIAL REMOVAL OF
DRAIN P AN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED. 40 (10.2) PVC P IP E DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE S CHED. 40 (10.2) PVC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

25 1/2"
(647. 7)
DUCT FLANGE
1" (25.4)
HEIGHT

16 1/4"
(412. 8)
.70"
(17. 78)

11 11/16"
(296. 9)

47 1/2"
(1206. 5)

S UP P LY
OP EN

24 1/16"
(611. 2)

12 5/16"
8 5/16"
(312. 7)
(211. 1)

HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES

16 1/16"
(408)

SIDE RETURN

16 7/8"
(406.4)

BOTTOM RETURN

2 1/4" (57.15)

HEATER
VENTILATION

1 9/16"
(39. 7)
2 3/4"
(69.9)

6 13/16" (173)

CONTROL WIRING

25 1/2"
(647. 7)

1 13/16"
(46)
42"
(1066.8)

2 3/4"
(69.9)

42"
(1066.8)

3 1/2" (88.9)
LINE VOLTAGE
CONTROL BOX
ACCES S P ANEL

COPP ER LIQUID LINE
FIELD CONNECTION

8 13/16" (223.8)
16"
(406. 4)

1 3/16" (30.2)
DRAIN CONNECTION
FOR HORIZONTAL
(SEE NOTE 2,3,5)

COP P ER SUCTION LINE
FIELD CONNECTION

(2) REMOTE BULB TXV
S UCTION LINE

22 7/8"
(581)

16 1/4"
11 1/16" 13 3/4" (412. 8)
(349. 2)
(281)

16 3/4"
(425. 5)

19 1/16"
(484. 2)

20 1/16"
(509.6)

1 5/16" (33.3)

FILTER ACCES S PANEL
22" (559) MIN. DIS TANCE
BOTH SIDE

20 1/16"
(509.6) 16 3/4" 16 1/4" 13 3/4"
(425.5) (412.8) (349.3)

1 5/16" (33.3)

1 5/8" (41.3)

S EE NOTES 2,3,4

1 5/8" (41.3)

3 5/8" (92.1)

3 5/8" (92.1)

LIQUID LINES
S EE NOTES 2,3,4
1 3/16" (30.2)

45 1/8"
(1146. 2)

(4) - HOLE FOR HORIZONTAL
S US P ENS ION
S UP P LY OP ENING
(4) HOLE FOR
HORIZONTAL
S US P ENS ION

6 3/4"
(171. 5)
BOTTOM RETURN

54 1/16"
(1373. 2)

36 7/8"
(936. 6)

SIDE RETURN

FILTER
10 7/16"
(265. 1)

BOTTOM RETURN
S UP P LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

SSA-SVX06E-EN

S IDE RETURN
S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

15

Dimensional Data

Figure 10. 8.33, 10 ton air handler, single circuit
NOTES :
1. PANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCESS P LATE ON THE END OF UNIT OP P OS ITE DRAIN CONNECTION MUS T BE REMOVED TO
S LIDE DRAIN P AN OUT OF UNIT FOR CLEANING. ACCES S P LATE MUS T BE RE-INSTALLED AFTER
S LIDING DRAIN P AN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR PARTIAL REMOVAL OF
DRAIN PAN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE SCHED. 40 (10.2) P VC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

25 1/2"
(647. 7)
16 1/4"
(412. 8)

DUCT FLANGE
1" (25.4)
HEIGHT

.70" (17.8)

19 11/16"
(500. 1)

24 1/16"
(611. 2)

63 1/2"
(1612. 9)

S UP P LY
OP EN

HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES

15 15/16"
(404. 8)

20 5/16"
16 5/16" (515. 9)
(414. 3)

S IDE RETURN

1 11/16"
(42. 9)

BOTTOM RETURN

1 13/16"
(46)
58"
(1473.2)

2 3/4"
(69.8)

HEATER
VENTILATION

16 7/8"
(428.6)

58"
(1473.2)

2 3/4"
(69.8)

2 1/4" (57.2)
6 13/16" (173)
25 1/2"
(647. 7)

CONTROL WIRING

3 1/2" (89)

LINE VOLTAGE

8 7/8"
(225. 4) 16 1/16"
(408)

CONTROL BOX
ACCES S PANEL
DRAIN CONNECTION
FOR HORIZONTAL
(S EE NOTE 2,3,5)

22 7/8"
(581)

1 3/16"
(30. 2)

FILTER ACCES S P ANEL
22" (559) MIN. DIS TANCE
BOTH S IDE

COPP ER LIQUID LINE
FIELD CONNECTION

REMOTE BULB TXV
COP P ER SUCTION LINE
FIELD CONNECTION

S UCTION LINE

16 11/16"
(423. 9)

17 3/8"
(441. 4)

20"
(508)

17 3/8"
(441.3)

16 11/16"
(423.9)

1 11/16" (42.9)

3 5/8" (92.1)

3 5/8" (92.1)

1 11/16" (42.9)

S EE NOTES
2,3,4

LIQUID LINES
S EE NOTES 2,3,4
63 1/2"
(1613)
1 3/16" (30.2)

(4) - HOLE FOR
HORIZONTAL
S US P ENS ION

61 1/8"
(1552. 6)

(4) HOLE FOR
HORIZONTAL
S US P ENS ION
S UPP LY OP ENING
BOTTOM RETURN

6 3/4"
(171. 45)
S IDE RETURN

54 1/16"
(1373. 2)

36 7/8"
(936. 63)
FILTER
SIDE RETURN
BOTTOM RETURN

10 7/16" (265.1)

16

S UP P LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

SSA-SVX06E-EN

Dimensional Data

Figure 11. 8.33, 10 ton air handler, dual circuit
NOTES :
1. PANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCESS P LATE ON THE END OF UNIT OP P OS ITE DRAIN CONNECTION MUS T BE REMOVED TO
S LIDE DRAIN P AN OUT OF UNIT FOR CLEANING. ACCES S P LATE MUS T BE RE-INSTALLED AFTER
S LIDING DRAIN P AN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR PARTIAL REMOVAL OF
DRAIN PAN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION VE RTICAL CONFIGURATION.
5. 1" (25.4) FEMALE SCHED. 40 (10.2) P VC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

25 1/2"
(647. 7)
.70" (17.8)

16 1/4"
(412. 7)

DUCT FLANGE
1" (25.4)
HEIGHT

19 11/16"
(500. 1)

24 1/16"
(611. 2)

63 1/2"
(1613)

S UP P LY
OP EN

15 15/16"
(404. 8)
HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES

20 5/16"
16 5/16" (515. 9)
(414. 3)

HEATER
VENTILATION

1 11/16"
(42. 9)

BOTTOM RETURN

1 13/16"
(46)
58"
(1473.2)

2 3/4"
(69.8)

2 1/4" (57.15)

16 7/8"
(428.6)

S IDE RETURN

58"
(1473.2)

2 3/4"
(69.8)

6 13/16" (173)
25 1/2"
(647. 7)

CONTROL WIRING

3 1/2" (89)

LINE VOLTAGE

8 7/8"
(225. 4) 16 1/16"
(408)

CONTROL BOX
ACCES S PANEL
DRAIN CONNECTION
FOR HORIZONTAL
(S EE NOTE 2,3,5)

22 7/8"
(581)

COP PER LIQUID LINE
FIELD CONNECTION

(2) REMOTE BULB TXV
COP P ER SUCTION LINE
FIELD CONNECTION

S UCTION LINE
1 3/16"
(30. 2)

FILTER ACCES S P ANEL
22" (558.8) MIN. DIS TANCE
BOTH S IDE

13 11/16"
11" (279.4) (347. 7)

20"
(508)

19"
16 1/4" 16 11/16"
(423. 9) (482 .6)
(412. 8)

20 1/16"
16 3/4" 16 1/4" 13 3/4"
(509.6)
(425.5) (412.8) (349.3)

1 5/16" (33.4)

1 5/16" (33.3)

1 5/8" (41.3)

1 5/8" (41.3)

3 5/8" (92.1)

3 5/8" (92.1)

S EE NOTES
2,3,4

LIQUID LINES
S EE NOTES 2,3,4
(4) - HOLE FOR HORIZONTAL
S US P ENS ION
1 3/16"
(30. 2)

61 1/8"
(1552. 6)

S UP P LY OP ENING

6 3/4"
(171. 45)

(4) HOLE FOR
HORIZONTAL
SUS PENSION

BOTTOM RETURN
S IDE RETURN

54 1/16"
(1373. 2)

36 7/8"
(936. 6)
FILTER
BOTTOM RETURN

10 7/16" (265.1)

SSA-SVX06E-EN

S UP P LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

S IDE RETURN
S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

17

Dimensional Data

Figure 12.

10.4, 13, 12.5, 15 ton air handler, dual circuit
NOTES :
1. P ANEL DEP TH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, P LAS TIC DRAIN P AN
ACCESS P LATE ON THE END OF UNIT OP P OS ITE DRAIN CONNECTION MUS T BE REMOVED TO
S LIDE DRAIN P AN OUT OF UNIT FOR CLEANING. ACCES S P LATE MUS T BE RE-INSTALLED AFTER S LIDING
DRAIN PAN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR PARTIAL REMOVAL OF
DRAIN PAN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED. 40 (10.2) P VC P IP E DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE SCHED. 40 (10.2) P VC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

29 1/16"
(738. 2)
16 5/16"
(414. 3)

DUCT FLANGE
1" (25.4)
HEIGHT

2 7/8" (73)
12 3/8" (314.3)

S UP P LY
OP EN
79 9/16"
(2020. 9)

54 15/16"
(1395. 4)

17 7/8"
(454)

S UP P LY
OP EN

12 1/8"
(308)
HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES

S IDE RETURN

19 1/2"
(495.3)

S IDE RETURN

BOTTOM RETURN

BOTTOM RETURN

3 7/16" (87.3)

3 5/16" (84.1)
2 3/4"
(69.8)

74 1/8"
(1882.8)

2 3/4"
(69.8)

74 1/8"
(1882.8)

4 5/16" (109.5)
29 1/16"
(738. 2)

CONTROL WIRING
LINE VOLTAGE

4 1/4" (108)
12 13/16" (325.4)
20"
(508)

CONTROL BOX
ACCES S PANEL

COPP ER LIQUID LINE
FIELD CONNECTION

DRAIN CONNECTION
FOR HORIZONTAL
(S EE NOTE 2,3,5)

25 1/8"
(638. 2)

(2) REMOTE BULB TXV
COP P ER S UCTION LINE
FIELD CONNECTION

S UCTION LINE

1 1/4"
(31. 8)
12" (304.8)

FILTER ACCES S P ANEL
22" (559) MIN.
DIS TANCE
BOTH S IDE

15 13/16" 18 5/16" 18 11/16"
(474. 7)
(465. 1)
(401. 6)

21 1/2"
(546. 1)

22"
(558.8)

21 1/2"
(546.1)

18 11/16"
(474.6)

18 3/8"
(466.7)

15 13/16"
(401.64)
S EE NOTES
2,3,4

2" (50.8)

1 5/16" (33.3)

2 5/16" (58.7)

2 1/8" (54)
2 7/16" (62)
4 1/4" (108)

4 1/8" (104.8)

LIQUID LINES
(4) - HOLE FOR HORIZONTAL
S US P ENS ION

S EE NOTES 2,3,4
79 5/8"
(2022. 5)
1 3/16"
(30. 2)

(4) HOLE FOR
HORIZONTAL
S US P ENS ION

S UP P LY OP ENING

77 3/16"
(1960. 6)
BOTTOM RETURN

9 5/8"
(244. 5)
S IDE RETURN
69 1/16"
(1754. 2)

48"
(1219. 2)

FILTER

BOTTOM RETURN

11 7/16" (290.5)

18

S UP P LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

S IDE RETURN
S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

SSA-SVX06E-EN

Dimensional Data

Figure 13.

16.7, 20.9, 20, 25 ton air handler, dual circuit
31 1/8"
(790.6)

DUCT FLANGE
1" (25.4)
HEIGHT

NOTES :
1. P ANEL DEPTH 1/2" (12.7) (TYP . ALL P ANELS ).
2. REMOVABLE DRAIN P AN AND ATTACHED DRAIN CONNECTION MAY BE INS TALLED ON END
OF UNIT IN EITHER THE VERTICAL OR HORIZONTAL CONFIGURATION, PLAS TIC DRAIN P AN
ACCES S P LATE ON THE END OF UNIT OP P OSITE DRAIN CONNECTION MUS T BE REMOVED TO
S LIDE DRAIN P AN OUT OF UNIT CLEANING. ACCES S P LATE MUS T BE RE-INS TALLED AFTER
S LIDING DRAIN P AN BACK INTO UNIT.
3. IF P ERIODIC DRAIN P AN CLEANING IS REQUIRED, ALLOW ROOM FOR P ARTIAL REMOVAL OF
DRAIN P AN CONNECTION AT END OF UNIT.
4. 1" (25.4) FEMALE S CHED .40 (10.2) P VC P IP E DRAIN CONNECTION VERTICAL CONFIGURATION.
5. 1" (25.4) FEMALE S CHED .40 (10.2) P VC P IP E DRAIN CONNECTION HORIZONTAL CONFIGURATION.

16 5/16"
(414.3)
4 15/16" (125.4)

18 7/8"
(479.4)

SUP PLY
OP EN

92 9/16"
(2351.1)

54 15/16"
(1395.4)

20 15/16"
(531.8)

HEATER CONTROL
AND S INGLE P OWER
ENTRY WIRES

CONTROL WIRING

6 7/16" (163.5)
31 1/8"
(790.6)

S IDE RETURN

20 15/16"
(531.8)

S IDE RETURN

18 5/8"
(473.1)
3"
(76.2)
4 3/4"
(120.6)

BOTTOM RETURN

2 15/16"
(74.6)
4 3/4"
(120.6)

83 1/8"
(2111.4)

BOTTOM RETURN

83 1/8"
(2111.4)

4 1/4" (108)

LINE VOLTAGE

20" (508)

CONTROL BOX
ACCESS P ANEL
DRAIN CONNECTION
FOR HORIZONTAL
(S EE NOTE 2,3,5)

COP P ER LIQUID LINE
FIELD CONNECTION

12 13/16"
(325. 4)
REMOTE BULB TXV

COP P ER SUCTION LINE
FIELD CONNECTION

S UCTION LINE

28 1/2"
(724)

1 3/16"
(30.2)

FILTER ACCESS P ANEL
22" (559) MIN. DIS TANCE
BOTH S IDE
LIQUID LINES
S EE NOTES 2,3,4

25 1/2"
18 3/8" 19 1/8" 21 3/8" 21 13/16" (647.7) 25 1/2" 21 13/16"
12 7/8" 15 7/8" (466.7) (485. 8) (542. 9) (554)
(647.7)
19 1/8" 18 3/8" 15 7/8"
(554)
(327) (403. 2)
(485.8) (466.7) (403.2)
S EE NOTES
2,3,4

1 11/16" (42.9)
1 15/16" (49.2)

1 9/16" (39.7)

3 3/8" (85.7)

1 7/8" (47.6)

4" (101.6)
3 1/4" (82.5)

(4) - HOLE FOR HORIZONTAL
S US P ENS ION

1 11/16"
(42.9)

3 7/8" (98.4)

92 9/16"
(2351.1)
89 3/16"
(2265.4)

9 5/8"
(244.5)

71 7/8" 50 13/16"
(1825.6) (1290.6)

S IDE RETURN

S IDE RETURN
FILTER
BOTTOM RETURN

11 7/16"
(290.5)

SSA-SVX06E-EN

(4) HOLE FOR
HORIZONTAL
SUS PENSION

S UP P LY OP ENING

BOTTOM RETURN
S UPP LY VERTICAL RETURN HORIZONTAL /
RETURN VERTICAL

S UP P LY HORIZONTAL RETURN VERTICAL /
RETURN HORIZONTAL

19

Weights
Air Handler
Table 1.

Standard air handler (TWE) — unit and corner weights - (60 Hz)
Corner Weights - Vertical

Corner Weights - Horizontal

Tons

Model
Number

Shipping
Max (lbs)

Net Max
(lbs)

5

TWE061D/E

263

7.5

TWE090D/E

360

10

TWE120D/E

429

393

77

121

110

85

79

118

77

119

12.5

TWE150E

730

676

168

192

181

135

196

164

145

171

1

2

3

4

1

2

3

4

232

55

71

51

55

54

67

50

61

323

67

99

75

82

56

92

87

88

15

TWE180E

729

675

167

192

181

135

196

163

145

171

20

TWE240E

891

818

258

168

161

231

256

181

146

235

25

TWE300E

972

899

211

229

184

275

272

176

228

223

Table 2. SZVAV and 2-Speed VFD air handler (TWE) — unit and corner weights - (60 Hz)
Corner Weights - Vertical

Model
Number

Shipping
Max (lbs)

Net Max
(lbs)

7.5

TWE090E

360

323

67

10

TWE120D/E

429

393

77

Tons

1

2

Corner Weights - Horizontal

3

4

1

2

3

99

75

82

121

110

85

4

56

92

87

88

79

118

77

119

12.5

TWE150E

730

676

168

192

181

135

196

164

145

171

15

TWE180E

729

675

167

192

181

135

196

163

145

171

20

TWE240E

891

818

258

168

161

231

256

181

146

235

25

TWE300E

972

899

211

229

184

275

272

176

228

223

Table 3. Standard air handler (TWE) — unit and corner weights - (50 Hz)
Tons

Model
Number

Shipping
Max (lbs)

Net Max
(lbs)

Corner Weights - Vertical

Corner Weights - Horizontal

1

2

3

4

1

2

3

4
61

4.6

TWE051D

263

232

55

71

51

55

54

67

50

6.25

TWE076D/E

360

323

67

99

75

82

56

92

87

88

8.33

TWE101D/E

429

393

77

121

110

85

79

118

77

119

10.4

TWE126E

730

676

168

192

181

135

196

164

145

171

13

TWE156E

729

675

167

192

181

135

196

163

145

171

16.7

TWE201E

891

818

258

168

161

231

256

181

146

235

20.9

TWE251E

972

899

211

229

184

275

272

176

228

223

Figure 14.

Vertical — TWE051, 076, 101, 061, 090, 120

Control Box Access

Top View

20

SSA-SVX06E-EN

We i g h t s

Figure 15.

Vertical — TWE126, 156, 201, 251, 150, 180, 240, 300

Control Box Access

Top View
Figure 16.

Horizontal — TWE051, 076, 101, 061, 090, 120

Top View

Control Box
Access
Figure 17. Horizontal — TWE126, 156, 201, 251, 150, 180, 240, 300

Top View

Control Box
Access

SSA-SVX06E-EN

21

Installation
Horizontal Suspension
If the air handler will be suspended, use a suspension
mounting kit to isolate the unit from the structure. This
is usually accomplished with spring or rubber isolators,
which are offered as an accessory.
Mounting rods must be field supplied. Isolator
selection is dependent upon total unit weight including
accessories — see “Weights,” p. 20 for approximate
unit weights.

N OT I C E
Equipment Damage!
Before hanging the unit on suspension rods,
reinforce the cabinet around the suspension holes
by u si ng a l arg e was h er i ns i de th e c ab i ne t.
Wa s h e r s s h o u l d b e b e t w e e n t h e s k i n o f t h e a i r
handler and the nut on the suspension rod.
Align holes in the cabinet with structural supports and
secure suspension rods to the structure, then to the air
handler cabinet. If hole locations do not permit proper
alignment with existing structure, it may be necessary
to field fabricate cross members on existing structural
beams.
N o t e : When other than bottom return is to be used,
side panel removal for return duct installation
must be secured over the bottom opening.

Leveling
This air handler has a double sloped drain pan. In order
to assure proper drainage along the length of the drain
pan, it is important to have the unit properly leveled. Be
sure the air handler is level.

Auxiliary Drain Pan
A field fabricated, auxiliary drain pan should be
installed under the unit for all horizontal applications
and when air handlers are installed above ceilings or in
other locations where condensate overflow may cause
damage.

N OT I C E
Equipment Damage!
Ensure that the refrigerant lines passing through
the cabinet are not resting on sharp sheet metal
e d g e s a n d t h a t t h e b u l b ( s ) a r e a tt a ch e d t o t h e
suction line of the same circuit.
1. Locate cloth bag(s) attached to the refrigerant tube
of the coil that contains a stainless steel clamp and
insulation material (approximately 9” long by 4”
wide) for each refrigerant circuit. This is for
attaching and insulating the expansion valve bulb(s)
to the suction line(s).
2. Attach the expansion valve bulb(s)
on air handler s that will have refrigerant lines
e n t e r i n g t h e c a b i n e t f r o m t h e l e ft s i d e :
a. Remove the split rubber grommet from the
knockout in the end of the air handler. Uncoil the
cap tube with the bulb attached at the expansion
valve and place the grommet on the cap tube.
b. With the grommet around the tube, push the
bulb through the hole and position the grommet
back into its original position (one bulb and cap
tube on single circuit units, and two bulbs and
cap tubes on dual circuit units).
on air handler s that will have refrigerant lines
entering the cabinet from the right side:
a. Attach the bulb(s) to the suction tube(s) inside
the cabinet, approximately 10” from the right
end of the unit.
3. Attach the bulb(s) on a horizontal section of tube
where the entire length of the bulb is in contact with
the tube (see Figure 18, p. 23), approximately 45
degrees off vertical (a 10 or 2 o’clock position).
4. After attaching to the suction line(s), either inside or
outside of the cabinet, wrap the insulation around
the bulb(s) and suction tube(s).
N o t e : Suction piping should be insulated.

This drain pan will eliminate any excess condensation
that may be due to extreme humidity or an obstructed
drain in the primary drain pan. Drain lines from this
pan must be installed, but should not be connected to
the primary drain line from the unit. Isolate the
auxiliary drain pan from both the air handler and the
structure.

Refrigerant Piping
Installation, brazing, leak testing and evacuation of
refrigerant lines are covered in the installation
instructions that shipped with the outdoor unit. Read
the instructions before beginning installation of
refrigerant lines.
22

SSA-SVX06E-EN

Installation

WA R N I N G
F i b e r g l a s s Wo o l !
Yo u M U S T w e a r a l l n e c e s s a r y Pe r s o n a l P r o t e c t i v e
Equ ip men t (PP E) i ncl udi ng g lov es, e y e pro te cti on,
a N I O S H a p p r o v e d d u s t / m i s t r e s p i r a t o r, l o n g
sleeves and pants when working with products
containing fiberglass wool.

N o t e : When air handler is installed in the vertical
position and close proximity trapping of
condensate is required, use of a subbase
accessory to raise the air handler for clearance of
the drain trap is recommended. See Figure 19, p.
23 for a typical drain trap assembly.
Figure 19. Typical drain trap assembly
VENT

Pr e c a u t i o n a r y M e a s u r e s :
•

Av o i d b r e a t h i n g f i b e r g l a s s d u s t .

•

U s e a N I O S H a p p r ov e d d u s t / m i s t r e s p i r a t o r.

•

Av o i d c o n t a c t w i t h t h e s k i n o r e y e s . We a r
l o n g - s l e e v e d , l o o s e - f i tt i n g c l o t h i n g , g l o v e s ,
and eye protection.

DRAIN

•

Wa s h c l o t h e s s e p a r a t e l y f r o m o t h e r c l o t h i n g ;
r i n s e w a s h e r t h o r o u g h l y.

CLEAN
OUT

•

O p e r a t i o n s s u ch a s s a w i n g , b l o w i n g , t e a rout, and spraying may generate fiber
concentrations requiring additional
respiratory protection. Use the appropriate
N I O S H a p p r ov e d r e s p i r a t o r.

Filter Replacement
WA R N I N G
F i b e r g l a s s Wo o l !

Fir st Aid Measures:
•

Ey e C ont ac t - F lu sh e y es wi th wat e r to
re move dust. If sy mpt oms p er si st , see k
m e d i c a l a tt e n t i o n .

•

S k i n C o n t a c t - Wa s h a ff e c t e d a r e a s g e n t l y
w i t h s o a p a n d w a r m w a t e r a ft e r h a n d l i n g .

Figure 18. Remote bulb installation

Between
10 and 2 O’Clock
Bulb
Retaining
Clip
0

Yo u M U ST w e a r a l l n e c e s s a r y Pe r s o n a l P r o t e c t i v e
E q u i p m e n t ( P P E ) i n c l u d i n g g l ov e s , e y e p r o t e c t i o n ,
a N I O S H a p p r o v e d d u s t / m i s t r e s p i r a t o r, l o n g
sleeves and pants when working with products
containing fiberglass wool.
Pre ca ut io na ry Me a su re s:
•

Av o i d b r e a t h i n g f i b e r g l a s s d u s t .

•

U s e a N I O S H a p p r o v e d d u s t / m i s t r e s p i r a t o r.

•

Av o i d c o n t a c t w i t h t h e s k i n o r e y e s . We a r
l o n g - s l e e v e d , l o o s e - f i tt i n g c l o t h i n g , g l o v e s ,
and eye protection.

•

Wa s h c l o t h e s s e p a r a t e l y f r o m o t h e r c l o t h i n g ;
r i n s e w a s h e r t h o r o u g h l y.

•

O p e r a t i o n s s u ch a s s a w i n g , b l o w i n g , t e a rout, and spraying may generate fiber
concentrations requiring additional
respiratory protection. Use the appropriate
N I O S H a p p r o v e d r e s p i r a t o r.

0

Insulating
Tape
0

Fir st Aid Measures:
•

E y e C o n t a c t - F l u s h e y e s w i t h wa t e r t o
r e m ov e d u s t . I f s y m p t o m s p e r s i s t , s e e k
m e d i c a l a tt e n t i o n .

•

S k i n C o n t a c t - Wa s h a ff e c t e d a r e a s g e n t l y
w i t h s o a p a n d wa r m w a t e r a ft e r h a n d l i n g .

0

Condensate Piping
The drain pan condensate connection is a female slip
joint type for 1” Schedule 40 PVC pipe. Use PVC cement
and tubing as required (field supplied) to construct a
trap. A union or flexible tubing and clamps may be
installed if the drain pan is to be removed periodically
for cleaning.

SSA-SVX06E-EN

Materials
2 each - TEE
2 each - 90° ELL
1 each - PLUG
2 each - 6” NIPPLE
2 each - 2” NIPPLE
1 each - 1” NPT to PVC or
COPPER ADAPTER

Air handlers are shipped with throwaway filters
installed. For replacement filters consult the air handler
service facts for correct size and number.

23

Installation

To replace filters from the end of the unit, remove lower
access panel (either end) and slide old filters out and
replace with new ones.
To replace from the front of the unit, remove one “L”
shaped angle. Remove and replace filters and reinstall
“L” shaped angle. See Figure 20, p. 24.
To convert from 1” filter to a 2” filter on units so
equipped, remove lower access panels from both ends
of the air handler. Remove screws and rotate the “L”
shaped angles from both the top and bottom of the
filter track 180° to increase the width of the filter
opening.
Figure 20.

SZVAV Units
For SZVAV units, air flow is set by using potentiometer
R-136 on the ReliaTel options module found in the air
handler control box, see Figure 21, p. 24. The
potentiometer will adjust the maximum air flow
between the range of 60 Hz to 44.50 Hz. If the desired
maximum operating point from the catalog fan table is
lower than 44.50 Hz, parameter 6-15 on the VFD must
be reprogrammed to 50 Hz. The VFD is preset from the
factory to a default of 25 Hz for the lower limit and does
not need to be reprogrammed.
Figure 21. ReliaTel options module

Filter location

Filter
Frame

Duct Connections
The supply and return ducts should be connected to
the unit with flame retardant duct connectors to reduce
vibration transmission. The return duct should be sized
to the same dimensions as the return inlet of the unit.
I m p o rt a n t : Duct flanges are provided for attachment of
the duct work and are packaged on the
outside of the cabinet for TWE150, 180, 240,
300 and TWE126, 156, 201, 251. The duct
flanges are fastened to the pallet below the
coil (bottom return) on the TWE051, 061,
076, 090, 101 and 120 models.

Measure the voltage between TP1 on the RTOM and
ground. Use Table 4, p. 24 to set the desired maximum
operating supply fan speed.
Table 4. SZVAV air handler speed to voltage
Parameter 6-15 Set to 60 Hz

High Speed
(Hz)

TP1
(RTOM)
Voltage
(Vdc)

High Speed
(Hz)

TP1
(RTOM)
Voltage
(Vdc)

38.00

<0.10

44.00

1.65

38.40

0.20

44.40

1.70

38.80

0.30

44.80

1.75

39.20

0.45

45.20

1.83

Standard Units

39.60

0.55

45.60

1.90

Unit is shipped for nominal airflow with nominal static
pressure. Please refer to the fan performance table in
either the product catalog or unit service facts and
select the proper drive package for each application.
Failure to do so could result in improper airflow
causing coil frosting or condensate management
problems. Condensate management problems such as
water blow off could be the result of too great of air
face velocity across the coil. To ensure proper
operation refer to “Fan Belt Adjustment,” p. 44.

40.00

0.70

46.00

1.95

40.40

0.80

46.40

2.00

40.80

0.95

46.80

2.05

41.20

1.05

47.20

2.10

41.60

1.15

47.60

2.13

42.00

1.25

48.00

2.17

42.40

1.30

48.40

2.21

Air Flow Settings

24

SSA-SVX06E-EN

Installation

Table 4. SZVAV air handler speed to voltage
(continued)

Table 5. 2-Speed VFD programming speeds

Parameter 6-15 Set to 60 Hz

High Speed
(Hz)

TP1
(RTOM)
Voltage
(Vdc)

High Speed
(Hz)

TP1
(RTOM)
Voltage
(Vdc)

42.80

1.35

48.80

2.27

43.20

1.45

49.20

2.30

43.60

1.55

49.60

2.35

—

—

50.00

>2.40

44.50

<0.10

52.25

1.65

45.02

0.20

52.77

1.70

45.53

0.30

53.28

1.75

46.05

0.45

53.80

1.83

46.57

0.55

54.32

1.90

47.08

0.70

54.83

1.95

47.60

0.80

55.35

2.00

48.12

0.95

55.87

2.05

48.63

1.05

56.38

2.10

49.15

1.15

56.90

2.13

49.67

1.25

57.42

2.17

50.18

1.30

57.93

2.21

50.70

1.35

58.45

2.27

51.22

1.45

58.97

2.30

51.73

1.55

59.48

2.35

—

—

60.00

>2.40

2-Speed VFD Units
To configure units with an RTOM for 2-speed operation
move plug PPM 10 from PPF 10 to TP. Refer to “Heating
and Cooling Setpoint Arbitration,” p. 27 for setpoint
connection. Complete the configuration by
reprogramming VFD parameter 6-10 to 5.00 V and
parameter 6-11 to 7.60 V. For 2-Speed VFD controlled
units the desired maximum air flow (High Speed) is set
by reprogramming parameter 6-15 on the VFD to the
frequency value that best meets the RPM requirement
as shown in the catalog fan tables.
The minimum air flow (Low Speed) is set by
reprogramming parameter 6-14 on the VFD. Refer to
Table 5, p. 25 to see the allowed Low Speed range for a
given High Speed. Use the Menu button and up and
down arrows on the keypad to access the parameters.

SSA-SVX06E-EN

High
Speed
(Hz)

Low Speed
(Hz)
Ranges

High Speed
(Hz)

Low Speed
(Hz)
Ranges

60.00

25.00 - 39.60

48.00

25 - 31.68

59.00

25.00 - 38.94

47.00

25 - 31.02

58.00

25.00 - 38.28

46.00

25 - 30.36

57.00

25.00 - 37.62

45.00

25 - 29.70

56.00

25.00 - 36.96

44.00

25 - 29.04

55.00

25.00 - 36.30

43.00

25 - 28.38

54.00

25.00 - 35.64

42.00

25 - 27.72

53.00

25.00 - 34.98

41.00

25 - 27.06

52.00

25.00 - 34.32

40.00

25 - 26.40

51.00

25.00 - 33.66

39.00

25 - 25.74

50.00

25.00 - 33.00

38.00

25 - 25.08

49.00

25.00 - 32.34

—

—

Minimum Supply Fan Output
Refer to Table 6, p. 25 for details on minimum supply
fan output signals associated with each unit function.
Note that each value represents the actual Fan Output
% based on 100% being the customers selected
maximum operating speed.
Table 6. Minimum supply fan speeds for SZVAV units
VFD Parameter 6-15 Set to 60 Hz
Function

Minimum
Fan Output %

Ventilation Only

58%

Cool 1 (C1 or C2)

58%

Cool 2 (C1 + C2 Energized)

80%

CV Staged Heat

100%

VFD Parameter 6-15 Set to 50 Hz
Function

Minimum
Fan Output %

Ventilation Only

64%

Cool 1 (C1 or C2)

64%

Cool 2 (C1 + C2 Energized)

83%

CV Staged Heat

100%

Table 7. Minimum supply fan speeds for 2-Speed units
Function

Fan Output %

Ventilation Only

42 - 66% (a)

Cool 1 (C1)

42 - 66% (a)

25

Installation

Table 7. Minimum supply fan speeds for 2-Speed units
(continued)

(a)

Function

Fan Output %

Cool 2 (C1 + C2 Energized)

100%

CV Staged Heat

100%

Fan Output percentage is based on the customer chosen upper and
lower speed settings.

I m p o rt a n t : Do not remove the VFD without first
contacting technical support! For
performance-related questions and
diagnostic support in North America call 1877-872-6363. Any return requires a claim
number FIRST. Removal of the VFD prior to
this step will void the unit warranty.

3. Ensure all connections are tight and no wires
exposed.
4. All accessories must be installed and wired
according to the instructions packaged with that
accessory.
For air handler power entry only, or for dual power
entry (power entry for air handler and power entry
for electric heats), the electrical connections are
made in the fan control box located in the right side
of the air handler and electric heater respectively.
Wiring entrance is through holes provided in the
end of the air handler cabinet, Figure 22, p. 26.
Breaker or fuse size can be selected using the
nameplates attached to the unit and electric heater.
Figure 22.

Electrical entries

Electrical Connections
WA R N I N G
H a z a r d o u s Vo l t a g e w / C a p a c i t o r s !
D i s c o n n e c t a l l e l e c t r i c p o w e r, i n c l u d i n g r e m o t e
d i s c o n n e c t s a n d d i s ch a r g e a l l m o t o r s t a rt / r u n
c a p a c i t o r s b e f o r e s e r v i c i n g . F o l l o w p r o p e r l o ck o u t /
tagout procedures to ensure the power cannot be
i n a d v e rt e n t l y e n e r g i z e d . F o r v a r i a b l e f r e q u e n c y
dri ves or other energy storing components
p r o v i d e d b y Tr a n e o r o t h e r s , r e f e r t o t h e
a p p r o p r i a t e m a n u f a c t u r e r ’s l i t e r a t u r e f o r
a l l o w a b l e w a i t i n g p e r i o d s f o r d i s ch a r g e o f
c a p a c i t o r s . Ve r i f y w i t h a n a p p r o p r i a t e v o l t m e t e r
t h a t a l l c a p a c i t o r s h a v e d i s ch a r g e d .
For ad di ti on al i n for m at io n rega rdi ng t he s a fe
d i s ch a r g e o f c a p a c i t o r s , s e e P R O D - S V B 0 6 A - E N .

WA R N I N G
Pr o p e r F i e l d W i r i n g a n d G r o u n d i n g
Re q u i r e d!
A l l f i e l d w i r i n g M U ST b e p e r f o r m e d b y q u a l i f i e d
per sonnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION
h a z a r d s . To a v o i d t h e s e h a z a r d s , y o u M U ST f o l l o w
requirements for field wiring installation and
grounding as described in NEC and your local/
state electrical codes.
1. All electrical lines, sizing, protection, and grounding
must be in accordance with the National Electric
Code and local codes.

Control Wiring
Heater Control
Single Point Power
Line Voltage Entrance

Table 8. Recommended thermostat wire size
Wire Size

Maximum Wire Length

(Gauge)

Physical distance between Unit & T’stat

22

30 Feet

20

50 Feet

18

75 Feet

16

125 Feet

14

200 Feet

Setpoints

2. Isolate conduit whenever vibration transmission
may cause a noise problem within the building
structure.

26

SSA-SVX06E-EN

Installation

EDC Switch Wiring
E l e c t r o m e ch a n i c a l U n i t s : To enable the Evaporator
Defrost Control Switch remove the "W3" jumper
between LTB1-B1 and LTB1-B2 at the Outdoor
Condenser Section.
Re l i a Te l U n i t s : To enable the Evaporator Defrost
Control Switch move wire "W11" from LTB2-B2 to LTB2R, and move wire "W12" from LTB2-B1 to LTB2-CD at
the Indoor Air Handler Section.
N o t e : Refer to wiring schematics for more detail.

Heating and Cooling Setpoint Arbitration
Figure 23.

Single Zone VAV units will require traditional Zone
Heating (if Heat installed) and Cooling Setpoints that
are used on constant volume units in addition to two
new setpoints: Discharge Air Cool (Externally Mounted
Potentiometer in Control Box) and Discharge Air Heat
(DA Heat R-42) Setpoint limits. The Zone Heating and
Cooling Setpoints will be selectable via the existing
RTRM customer connections for a Zone Sensor panel
and the DA Heat and Cool Setpoints will be customer
selectable via an onboard potentiometer on the RTOM,
and an off board potentiometer mounted inside the
control box with ranges 50-150°F and 40-90°F
respectively.
The setpoint tables should be used as a reference when
setting the DA Heat (R–42) and Discharge Air Cool
(Control Box Mounted Potentiometer) setpoints. Note
that the recommended settings for these setpoints are
100°F for the DA Heat Setpoint, and 50°F for the DA
Cool Setpoint.

Discharge air cooling setpoint

Table 9. DA heat setpoint
Voltage
(Vdc)

Setpoint
(ºF)

Voltage
(Vdc)

Setpoint
(ºF)

Voltage
(Vdc)

Setpoint
(ºF)

Voltage
(Vdc)

Setpoint
(ºF)

0.00

50

0.98

75

1.61

100

2.06

125

0.09

51

1.00

76

1.63

101

2.08

126

0.13

52

1.03

77

1.66

102

2.09

127

0.16

53

1.06

78

1.69

103

2.11

128

0.20

54

1.08

79

1.71

104

2.12

129

0.24

55

1.11

80

1.72

105

2.13

130

0.28

56

1.13

81

1.74

106

2.13

131

0.31

57

1.16

82

1.76

107

2.14

132

0.35

58

1.18

83

1.78

108

2.16

133

0.39

59

1.21

84

1.79

109

2.17

134

0.42

60

1.23

85

1.81

110

2.19

135

0.46

61

1.26

86

1.83

111

2.20

136

0.50

62

1.28

87

1.84

112

2.21

137

0.53

63

1.31

88

1.86

113

2.23

138

0.57

64

1.33

89

1.88

114

2.24

139

0.61

65

1.36

90

1.89

115

2.25

140

SSA-SVX06E-EN

27

Installation

Table 9. DA heat setpoint (continued)
Voltage
(Vdc)

Setpoint
(ºF)

Voltage
(Vdc)

Setpoint
(ºF)

Voltage
(Vdc)

Setpoint
(ºF)

Voltage
(Vdc)

Setpoint
(ºF)

0.65

66

1.38

91

1.91

116

2.26

141

0.68

67

1.41

92

1.93

117

2.28

142

0.72

68

1.43

93

1.95

118

2.29

143

0.76

69

1.46

94

1.96

119

2.30

144

0.79

70

1.48

95

1.98

120

2.32

145

0.83

71

1.51

96

2.00

121

2.33

146

0.87

72

1.53

97

2.01

122

2.34

147

0.90

73

1.56

98

2.03

123

2.36

148

0.94

74

1.58

99

2.05

124

2.37

149

—

—

—

—

—

—

2.40

150

Table 10. DA cool setpoint (mounted above keyboard)
Setpoint (°F)

Voltage (Vdc)

Setpoint (°F)

Voltage (Vdc)

Setpoint (°F)

Voltage (Vdc)

40

<0.10

51

1.30

61

2.00

41

0.20

52

1.35

62

2.05

42

0.30

53

1.45

63

2.10

43

0.45

54

1.55

64

2.13

44

0.55

55

1.65

65

2.17

45

0.70

56

1.70

66

2.21

46

0.80

57

1.75

67

2.27

47

0.95

58

1.83

68

2.30

48

1.05

59

1.90

69

2.35

49

1.15

60

1.95

70

>2.40

50

1.25

Note: The potentiometer voltage readings can be verified via the provided test points located next to each potentiometer. Use a DC voltmeter to the Vdc
reading between those points and common.

Checkout Procedure
Complete the “Installation Checklist,” p. 28 once
installation of field wiring connections is complete. All
operational checks (unit running) must be made after
the outdoor unit is installed and system
interconnection is complete.

Installation Checklist
WA R N I N G
H a z a r d o u s Vo l t a g e !
D i s c o n n e c t a l l e l e c t r i c p o w e r, i n c l u d i n g r e m o t e
di sc o nne c ts be for e s erv i c in g. Fo ll ow p rop er
l o ck o u t / t a g o u t p r o c e d u r e s t o e n s u r e t h e p o w e r
c a n n o t b e i n a d v e rt e n t l y e n e r g i z e d .
Complete this checklist once the unit is installed to
28

verify that all recommended procedures have been
accomplished before the system is started. Operational
checks cannot be performed until the outdoor unit is
installed and system interconnection is complete.
Verify that the unit electrical power is disconnected.
Inspect all field wiring connections. All connections
should be clean and tight.
Inspect unit ground connection(s). Ground must
comply with all applicable codes.
Inspect unit suspension arrangement (if used). Unit
position must be secure. Remove any tools or
debris found in or near the unit.
Inspect duct outlets. Outlets must be open and
unrestricted.
Inspect unit drain lines. Pipe connections must be
tight and drain line unrestricted.

SSA-SVX06E-EN

Installation

Inspect fan assembly to insure all moving parts
move freely.
If unit is horizontally mounted, make sure
secondary drain pan has been installed.

Figure 25.

Electromechanical jobsite connections

Disconnect S witch
(By Others)

Inspect unit for proper filters, securely installed and
not touching the coil surface. All cabinet panels
must be secure.

B

Air Handler

Electric
Heat Accessory

T’s t a t

Instruct owner/operator on proper system
operating and maintenance procedure.

C
D

Thermostat and Control
Connections

A

Wiring shown with dashed lines is to be furnished and
installed by the customer. All customer-supplied wiring
must be copper only and must conform to NEC and
local electrical codes. Codes may require line of sight
between disconnect switch and unit.
1. Observe all notes on the wiring diagrams.
2. Mount the thermostat or zone sensor in the desired
location.
3. Install color coded low voltage cables between
outdoor unit, indoor unit and thermostat. For
SZVAV units, install low voltage and
communication wires between the RTRM in the
condenser and the RTOM in the air handler. See
schematic and connection print for more detail.
4. Connect low voltage control wiring to the low
voltage terminal board located at the control box
per the typical interconnecting wiring diagrams. For
SZVAV units, connect the ReliaTel harness (supplied
with the air handler), between the RTRM and RTOM.
See Figure 24, p. 29.
Figure 24.

RTOM to RTRM harness

A.
B.
C.
D.

B
Disconnect S witch
(By Others) Note 2
Disconnect S witch
(By Others)

3 power wires, line voltage for 3 phase, (2 power wires for
single phase)
3 power wires, line voltage for 3 phase, (2 power wires for
single phase)
Cooling only thermostat: 3 to 7 wires depending on stages of
electric heat
3 to 7 wires depending on type of outdoor unit(s)

ReliaTel Controls
Wiring shown with dashed lines is to be furnished and
installed by the customer. All customer supplied wiring
must be copper only and must conform to NEC and
local electrical codes. Codes may require line of sight
between disconnect switch and unit.
Notes:
1. When electric heater accessory is used,
single point power entry or dual point power
entry is field optional. Single point power
entry option is through electric heater only.
2. ***Choose only one of the following;
Thermostat, Zone Sensor, or NSB Panel.

Field Installed Wires
RTRM J-4

RTOM J-1

Electromechanical Controls
Wiring shown with dashed lines is to be furnished and
installed by the customer. All customer supplied wiring
must be copper only and must conform to NEC and
local electrical codes. Codes may require line of sight
between disconnect switch and unit.
N o t e : When electric heater accessory is used, single
point power entry or dual point power entry is
field optional. Single point power entry option is
through electric heater only.

SSA-SVX06E-EN

29

Installation

Figure 26.

A.

ReliaTel jobsite connections

D.

3 power wires, line voltage for 3 phase, (2 power wires for
single phase)
3 power wires, line voltage for 3 phase, (2 power wires for
single phase)
Cooling only thermostat: 3 to 7 wires depending on stages of
electric heat
Heat Pump thermostat: 5 to 8 wires depending on stages of
electric heat
3 to 7 wires depending on type of outdoor unit(s)

E.

Zone Sensor: 4 to 10 wires depending on zone sensor model(a)

F.

Night Setback Panel: 7 wires

B.

Disconnect S witch
(By Others)
Note 2

C.
C.

B

Air Handler

Electric
Heat Accessory

D
A

30

C

E

T’s t a t

Zo n e
Sensor

(a)

B

F

Disconnect S witch
(By Others) Note 2

For SZVAV air handlers: 4 additional wires are required (2 of which
require twisted pair or shielded wire) in order to make connections
between ReliaTel boards in the condenser and air handler.

Disconnect S witch
(By Others)

NSB P anel

SSA-SVX06E-EN

Electrical Data
60 Hz Models
Includes Standard, SZVAV and 2–Speed VFD air
handlers.
Table 11. Voltage operating range (all air handlers)
Model Number:
Digit 8

Electrical
Characteristics

Unit Operating
Voltage Range

1

208-230/60/1

187-253

3

208-230/60/3

187-253

4

460/60/3

414-506

K

380/60/3

342-418

W

575/60/3

518-632

Table 12. Electrical characteristics — standard and low static motors — 60 Hz standard air handler
Standard Evaporator Fan Motor
Tons

Unit
Model Number
TWE061D1, E1

5

10

12.5

15

1

208

1

Hp
0.75

FLA

LRA

6.0

41.0

Low Static Evaporator Fan Motor

MCA MFS
7.5

15

No. Volts Phase

Hp

N/A

N/A

N/A

N/A

Amps
FLA

LRA

N/A

N/A

MCA MFS
N/A

N/A

TWE061D1, E1

1

230

1

0.75

5.9

45.0

7.4

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061D3, E3

1

208

3

0.75

2.5

16.4

3.1

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061D3, E3

1

230

3

0.75

2.4

16.4

3.0

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061D4, E4

1

460

3

0.75

1.2

8.2

1.5

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061DW

1

575

3

0.75

1.3

6.1

1.6

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D1, E1

1

208

1

1.5

6.8

31.5

8.5

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D1, E1

7.5

No. Volts Phase

Amps

1

230

1

1.5

6.2

31.5

7.8

TWE090D3, E3

1

208

3

1.5

5.3

34.3

6.6

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D3, E3

1

230

3

1.5

5.0

34.3

6.3

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090DK, EK

1

380

3

1.5

3.0

20.2

3.8

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D3, E3

1

460

3

1.5

2.5

17.0

3.1

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090DW, EW

1

575

3

1.5

1.8

13.6

2.3

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D1, E1

1

208

1

2

8.5

57.4

10.6

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D1, E1

1

230

1

2

7.7

57.4

9.6

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D3, E3

1

208

3

2

7.0

33.9

7.8

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D3, E3

1

230

3

2

6.6

33.9

7.3

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120DK, EK

1

380

3

2

3.3

28.0

4.1

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D3, E3(a)

1

460

3

2

3.3

19.0

3.6

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120DW, EW

1

575

3

2

2.3

15.6

4.0

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE150E3

1

208

3

2

6.0

23.0

7.4

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE150E3

1

230

3

2

5.5

23.0

6.9

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE150EK

1

380

3

2

3.3

28.0

4.1

15

N/A

TWE150E3(a)

1

460

3

2

2.8

23.0

3.4

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE150EW

1

575

3

2

2.2

18.0

2.8

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180E3

1

208

3

3

9.4

74.9

11.8

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180E3

1

230

3

3

9.2

74.9

11.5

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180EK

1

380

3

5

8.1

63.5

10.1

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180E3(a)

1

460

3

3

4.6

39.3

5.8

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180EW

SSA-SVX06E-EN

1

575

3

3

3.4

24.6

4.3

31

Electrical Data

Table 12. Electrical characteristics — standard and low static motors — 60 Hz standard air handler (continued)
Standard Evaporator Fan Motor
Unit
Tons
Model Number

20

25

No. Volts Phase

Hp

Amps
FLA

LRA
90.8

Low Static Evaporator Fan Motor

MCA MFS

No. Volts Phase

Hp

Amps
FLA

LRA

MCA MFS

TWE240E3

1

208

3

5

14.0

17.5

30

1

208

3

3

9.4

74.9

11.8

TWE240E3

1

230

3

5

13.6 103.0 17.0

30

1

230

3

3

9.2

74.9

11.5

25

TWE240EK

1

380

3

5

8.1

63.5

10.1

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE240E4

1

460

3

5

6.6

44.8

9.0

15

1

460

3

3

4.6

39.3

5.8

15

5.3

36.2

6.6

TWE240EW

1

575

3

5

TWE300E3

1

208

3

7.5

19.6 150.0 25.0

25

15

1

575

3

3

3.4

24.6

4.3

15

40

1

208

3

7.5

19.6

150

25

40

TWE300E3

1

230

3

7.5

17.8 150.0 25.0

40

1

230

3

7.5

17.8

150

25

40

TWE300EK

1

380

3

7.5

10.9

72.9

13.6

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE300E4

1

460

3

7.5

8.9

75.0

12.0

20

1

460

3

7.5

8.9

75

12

20

TWE300EW

1

575

3

7.5

7.1

60.0

9.0

15

1

575

3

7.5

7.1

60

9

15

Note: For additional information contact product support.
Field wired for 460V.

(a)

Table 13. Electrical characteristics — high and ultra-high static motors — 60 Hz standard air handler
High Static Evaporator Fan Motor
Tons

5

7.5

10

12.5

15

20

32

Unit
Model Number

No. Volts Phase

Hp

Amps
FLA

LRA

Ultra-High Static Evaporator Fan Motor

MCA MFS

No. Volts Phase

Hp

Amps
FLA

LRA

MCA MFS

TWE061D1, E1

1

208

1

1.5

6.8

31.5

8.5

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061D1, E1

1

230

1

1.5

6.2

31.5

7.8

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061D3, E3

1

208

3

1.5

5.3

34.3

6.6

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A
N/A

TWE061D3, E3

1

230

3

1.5

5

34.3

6.3

15

N/A

TWE061D4, E4

1

460

3

1.5

2.5

17

3.1

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE061DW

1

575

3

1.5

1.8

13.6

2.3

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D1, E1

1

208

1

2

8.5

57.4

10.6

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D1, E1

1

230

1

2

7.7

57.4

9.6

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE090D3, E3

1

208

3

2

7

33.9

7.8

15

1

208

3

3

9.4

74.9

11.8

25

TWE090D3, E3

1

230

3

2

6.6

33.9

7.3

15

1

230

3

3

9.2

74.9

11.5

25

TWE090D3, E3(a)

1

460

3

2

3.3

19

3.6

15

1

460

3

3

4.6

39.3

5.8

15

TWE090DW, EW

1

575

3

2

2.3

15.6

4

15

1

575

3

3

3.4

24.6

4.3

15

TWE120D1, E1

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D1, E1

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D3, E3

1

208

3

3

9.4

74.9

11.8

25

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D3, E3

1

230

3

3

9.2

74.9

11.5

25

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120D3, E3(a)

1

460

3

3

4.6

39.3

5.8

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE120DW, EW

1

575

3

3

3.4

24.6

4.3

15

N/A

TWE150E3

1

208

3

3

9.4

74.9

11.8

25

1

208

3

5

14

98

17.5

35

TWE150E3

1

230

3

3

9.2

74.9

11.5

25

1

230

3

5

13.6

103

17

35

TWE150E3(a)

1

460

3

3

4.6

39.3

5.8

15

1

460

3

5

6.6

44.8

8.3

20

TWE150EW

1

575

3

3

3.4

24.6

4.3

15

1

575

3

5

5.2

36.2

6.5

15

TWE180E3

1

208

3

5

14

98

17.5

30

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180E3

1

230

3

5

13.6

103

17

30

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180E3(a)

1

460

3

5

6.6

44.8

8.3

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE180EW

1

575

3

5

5.2

36.2

6.5

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE240E3

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

1

208

3

7.5

19.6

114

25

45

TWE240E3

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

1

230

3

7.5

17.6

126

22

40

TWE240E4

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

1

460

3

7.5

9

61.4

11.3

25

TWE240EW

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

1

575

3

7.5

7.2

49.8

9

20

SSA-SVX06E-EN

Electrical Data

Table 13. Electrical characteristics — high and ultra-high static motors — 60 Hz standard air handler (continued)
High Static Evaporator Fan Motor
Tons

25

Unit
Model Number

No. Volts Phase

Hp

Amps
FLA

LRA

Ultra-High Static Evaporator Fan Motor

MCA MFS

No. Volts Phase

Hp

Amps
FLA

LRA

MCA MFS

TWE300E3

1

208

3

7.5

19.6

150

25

40

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE300E3

1

230

3

7.5

17.8

150

25

40

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE300E4

1

460

3

7.5

8.9

75

12

20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

15

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE300EW

1

575

3

7.5

7.1

60

9

Note: For additional information contact product support.
(a)

Field wired for 460V.

Table 14. Electrical characteristics — standard and oversized motors — 60 Hz SZVAV and 2-Speed VFD air handler
Standard Evaporator Fan Motor
Tons

Unit
Model Number
TWE090E4

7.5

10

12.5

15

20

25

No. Volts Phase
1

208

3

Hp
2

Amps
FLA

LRA

6.2

43.4

High Static Evaporator Fan Motor

MCA MFS
8

15

No. Volts Phase
1

208

3

Hp
3

Amps

MCA MFS

FLA

LRA

9.4

71

12

20

TWE090E3

1

230

3

2

5.8

48

8

15

1

230

3

3

9.2

64

12

20

TWE090E4

1

460

3

2

2.9

24

4

15

1

460

3

3

4.6

35.5

6

15

TWE090E4

1

575

3

2

2.2

20.6

3

15

1

575

3

3

3.7

28.4

5

15

TWE120D3, E3

1

208

3

2

6.2

43.4

8

15

1

208

3

3

9.4

71

12

20

TWE120D3, E3

1

230

3

2

5.8

48

8

15

1

230

3

3

9.2

64

12

20

TWE120D4, E4

1

460

3

2

2.9

24

4

15

1

460

3

3

4.6

35.5

6

15

TWE120DW, EW

1

575

3

2

2.2

20.6

3

15

1

575

3

3

3.7

28.4

5

15

TWE150E3

1

208

3

2

6.2

43.4

8

15

1

208

3

5

13.4

99.5

17

30

TWE150E3

1

230

3

2

5.8

48

8

15

1

230

3

5

12.6

110

17

30
15

TWE150E4

1

460

3

2

2.9

24

4

15

1

460

3

5

6.3

55

8

TWE150EW

1

575

3

2

2.2

20.6

3

15

1

575

3

5

5.1

44

7

15

TWE180E3

1

208

3

3

9.4

71

12

20

1

208

3

5

13.4

99.5

17

30

TWE180E3

1

230

3

3

9.2

64

12

20

1

230

3

5

12.6

110

17

30

TWE180E4

1

460

3

3

4.6

35.5

6

15

1

460

3

5

6.3

55

8

15

5.1

44

TWE180EW

1

575

3

3

3.7

28.4

5

15

1

575

3

5

TWE240E3

1

208

3

5

13.4

99.5

17

30

1

208

3

7.5

19.6 113.4

7

15

25

45

TWE240E3

1

230

3

5

12.6

110

17

30

1

230

3

7.5

17.6

124

25

45

TWE240E4

1

460

3

5

6.3

55

8

15

1

460

3

7.5

8.8

63

11

15

5.1

44

TWE240EW

1

575

3

5

7

15

1

575

3

7.5

7.1

50.4

9

15

TWE300E3

1

208

3

7.5

19.6 113.4

25

45

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

TWE300E3

1

230

3

7.5

17.6

25

45

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

124

TWE300E4

1

460

3

7.5

8.8

63

12

20

N/A

TWE300EW

1

575

3

7.5

7.1

50.4

9

15

N/A

Notes:
1. For additional information contact product support.
2. Not available with 380/60 Hz models.

SSA-SVX06E-EN

33

Electrical Data

Table 15. Unit wiring with electric heat (single point connection) — 5-25 ton standard air handlers — 60 Hz
Tons Used With

5

5

5

5

7.5

7.5

7.5

7.5

10

10

34

TWE061D1,
TWE061E1

TWE061D3,
TWE061E3

TWE061D4,
TWE061E4

TWE061DW

TWE090D1,
TWE090E1

TWE090D3,
TWE090E3

TWE090D3,
TWE090E3(c)

TWE090DW,
TWE090EW

TWE120D1,
TWE120E1

TWE120D3,
TWE120E3

Heater Model
Number

Heater kW
Rating

BAYHTRL106*

4.33/5.76

BAYHTRL112*

8.65/11.52

Unit Power
Supply

208-230/1/60

Maximum Fuse
Control Minimum Circuit
or HACR Circuit
Stages
Ampacity
Breaker Size
1

33.5/37.4

35.0/40.0

1

59.5/67.4

60.0/70.0

BAYHTRL117*

12.98/17.28

1

85.5/97.4

90.0/100.0

BAYHTRL123*

17.31/23.04

2

111.5/127.4(a)

125.0/150.0

BAYHTRL305*

3.76/5.00

1

16.1/18.0

20.0/20.0

BAYHTRL310*

7.48/9.96

1

29.0/33.0

30.0/35.0

BAYHTRL315*

11.24/14.96

1

42.2/48.0

45.0/50.0

BAYHTRL325*

18.72/24.92

2

68.0/77.9(a)

70.0/80.0

BAYHTRL405*

5.00

1

10.0

15.0

BAYHTRL410*

9.96

BAYHTRL415*

14.96

208-230/3/60

460/3/60

1

17.0

20.0

1

25.0

25.0

BAYHTRL425*

24.92

2

40.0

40.0

BAYHTRLW05*

5.00

1

8.0

15.0

BAYHTRLW10*

9.96

1

15.0

15.0

BAYHTRLW15*

14.96

1

21.0

20.0

BAYHTRLW25*

24.92

2

33.0

35.0

BAYHTRL106*

4.33/5.76

1

34.5/37.8

40.0/40.0

BAYHTRL112*

8.65/11.52

1

60.5/67.8(a)

70.0/70.0

BAYHTRL117*

12.98/17.28

1

86.5/97.8

90.0/100.0

BAYHTRL123*

17.31/23.04

2

112.5/127.8(a)

125.0/150.0

BAYHTRL129*

21.63/28.80

2

138.6/157.8(a)

150.0/175.0

BAYHTRL305*

3.76/5.00

1

19.6/21.3

25.0/25.0

BAYHTRL310*

7.48/9.96

1

32.5/36.2

35.0/40.0

BAYHTRL315*

11.24/14.96

1

45.7/51.2

50.0/60.0

BAYHTRL325*

18.72/24.92

2

71.5/82.0(a)

80.0/90.0

BAYHTRL335*

26.20/34.88

2

98.7/112(b)

100.0/125.0
15.0

575/3/60

208-230/1/60

208-230/3/60

BAYHTRL405*

5.00

1

11.0

BAYHTRL410*

9.96

1

19.0

20.0

BAYHTRL415*

14.96

1

26.0

30.0

BAYHTRL425*

24.92

2

41.0

45.0
60.0

460/3/60

BAYHTRL435*

34.88

2

56.0

BAYHTRLW05*

5.00

1

11.0

15.0

BAYHTRLW10*

9.96

1

17.0

15.0

575/3/60

BAYHTRLW15*

14.96

1

23.0

25.0

BAYHTRLW25*

24.92

2

36.0

35.0

BAYHTRLW35*

34.88

2

48.0

45.0

BAYHTRL106*

4.33/5.76

1

36.6/39.6

40.0/45.0

BAYHTRL112*

8.65/11.52

1

62.6/69.6(a)

70.0/70.0

208-230/1/60

BAYHTRL117*

12.98/17.28

1

88.6/99.6

90.0/100.0

BAYHTRL123*

17.31/23.04

2

114.6/129.6(a)

125.0/150.0

BAYHTRL129*

21.63/28.80

2

140.7/159.6(a)

150.0/175.0

BAYHTRL305*

3.76/5.00

1

21.0/23.0

25.0/30.0

BAYHTRL310*

7.48/9.96

1

34.0/38.0

35.0/40.0

BAYHTRL315*

11.24/14.96

1

47.0/53.0

50.0/60.0

BAYHTRL325*

18.72/24.92

BAYHTRL335*

26.20/34.88

208-230/3/60

2

73.0/83.0(a)

80.0/90.0

2

98.7/113.0(b)

100.0/125.0

SSA-SVX06E-EN

Electrical Data

Table 15. Unit wiring with electric heat (single point connection) — 5-25 ton standard air handlers — 60 Hz
(continued)
Tons Used With

10

10

12.5

12.5

12.5

15

15

15

20

20

20

TWE120D3(c) ,
TWE120E3(c)

TWE120DW,
TWE120EW

TWE150E3

TWE150E3(c)

TWE150EW

TWE180E3

TWE180E3(c)

TWE180EW

TWE240E3

TWE240E4

TWE240EW

SSA-SVX06E-EN

Heater Model
Number

Heater kW
Rating

Unit Power
Supply

Maximum Fuse
Control Minimum Circuit
or HACR Circuit
Stages
Ampacity
Breaker Size

BAYHTRL405*

5.00

1

12.0

BAYHTRL410*

9.96

1

20.0

20.0

BAYHTRL415*

14.96

1

27.0

30.0

460/3/60

15.0

BAYHTRL425*

24.92

2

42.0

45.0

BAYHTRL435*

34.88

2

57.0

60.0

BAYHTRLW05*

5.00

1

10.0

15.0

BAYHTRLW10*

9.96

BAYHTRLW15*

14.96

575/3/60

1

16.0

15.0

1

22.0

25.0
35.0

BAYHTRLW25*

24.92

2

35.0

BAYHTRLW35*

34.88

2

47.0

45.0

BAYHTRM310A

7.51/10.00

1

33.5/36.9

35/40

1

59.3/66.8

60/70

2

85.5/96.8

90/100

BAYHTRM320A

14.96/19.92

BAYHTRM330A

22.47/29.92

BAYHTRM350A

37.44/49.84

2

137.3/156.7

150/175

BAYHTRM410*

10.00

1

19.0

20.0

BAYHTRM420*

19.92

1

34.0

35.0

BAYHTRM430*

29.92

2

49.0

50.0

BAYHTRM450*

49.84

2

79.0

80.0

BAYHTRMW10*

10.00

1

15.0

15.0

BAYHTRMW20*

19.92

1

27.0

30.0

BAYHTRMW30*

29.92

2

39.0

40.0

208-230/3/60

460/3/60

575/3/60

BAYHTRMW50*

49.84

2

63.0

70.0

BAYHTRM310*

7.51/10.00

1

37.8/41.6

45.0/45.0

BAYHTRM320*

14.96/19.92

BAYHTRM330*

22.47/29.92

BAYHTRM350*
BAYHTRM410*

1

63.7/71.4

70.0/80.0

2

89.8/101.5

90.0/110.0

37.44/49.84

2

141.6/161.4(b)

150.0/175.0

10.00

1

21.0

25.0

BAYHTRM42*

19.92

1

36.0

40.0

BAYHTRM430*

29.92

2

51.0

60.0

BAYHTRM450*

49.84

2

81.0

90.0

BAYHTRMW10*

10.00

1

17.0

20.0

BAYHTRMW20*

19.92

1

30.0

30.0

BAYHTRMW30*

29.92

2

42.0

45.0

BAYHTRMW50*

49.84

2

67.0

70.0

BAYHTRM310*

7.51/10.00

1

44.1/49.0

60.0/60.0

BAYHTRM320*

14.96/19.92

1

71.0/79.0

80.0/90.0

BAYHTRM330*

22.47/29.92

2

97.0/109.0

100.0/110.0

BAYHTRM350*

37.44/49.84

2

149.0/169.0(b)

150.0/175.0

BAYHTRM410*

10.00

1

24.0

30.0

BAYHTRM420*

19.92

1

39.0

40.0

BAYHTRM430*

29.92

2

54.0

60.0

BAYHTRM450*

49.84

2

84.0

90.0

BAYHTRMW10*

10.00

1

20.0

25.0

BAYHTRMW20*

19.92

1

32.0

35.0

BAYHTRMW30*

29.92

2

45.0

45.0

BAYHTRMW50*

49.84

2

70.0

70.0

208-230/3/60

460/3/60

575/3/60

208-230/3/60

460/3/60

575/3/60

35

Electrical Data

Table 15. Unit wiring with electric heat (single point connection) — 5-25 ton standard air handlers — 60 Hz
(continued)
Tons Used With

25

25

25

TWE300E3

TWE300E4

TWE300EW

Heater Model
Number

Heater kW
Rating

Unit Power
Supply

Maximum Fuse
Control Minimum Circuit
or HACR Circuit
Stages
Ampacity
Breaker Size

BAYHTRM310*

7.51/10

1

51.0/53.0

60.0/90.0

BAYHTRM320*

14.96/19.92

1

77.0/83.0

85.0/90.0

BAYHTRM330*

22.47/29.92

2

103.0/113.0

110.0/125.0

BAYHTRM350*

37.44/49.84

2

155.0/173.0

175.0/175.0

BAYHTRM410*

10.00

1

27.0

30.0

BAYHTRM420*

19.92

1

42.0

45.0

BAYHTRM430*

29.92

2

57.0

60.0

BAYHTRM450*

49.84

2

87.0

90.0

BAYHTRMW10*

10.00

1

22.0

25.0

BAYHTRMW20*

19.92

1

34.0

35.0

BAYHTRMW30*

29.92

2

47.0

50.0

BAYHTRMW50*

49.84

2

72.0

80.0

208-230/3/60

460/3/60

575/3/60

Notes:
1. kW ratings are at: 208/240V for 208-230V air handlers; 480V for 460V air handlers; 600V for 575V air handlers. For other than
rated voltage, capacity = (voltage/rated voltage)2 x rated capacity.
2. Any power supply and circuits must be wired and protected in accordance with local codes.
3. Electric heat not available with 380/60 Hz models.
4. The HACR circuit breaker is for U.S.A. installations only.
Field wire must be rated at least 75°C.
Field wire must be rated at least 90°C.
With motor field wired for 460V.

(a)
(b)
(c)

Table 16. Unit wiring with electric heat (single point connection) — 7.5-25 ton SZVAV and 2-Speed VFD air handlers —
60 Hz
Tons

7.5

7.5

7.5

10

36

Used With

TWE090E3*3

TWE090E4*4

TWE090EW*3

TWE120D3*3, E3*3

Control
Stages

Minimum
Circuit
Ampacity

Maximum Fuse or
HACR Circuit
Breaker Size

3.76/5.00

1

21/23

25/25

7.48/9.96

1

34/38

35/40

1

47/53

50/60

Heater Model
Number

Heater KW
Rating

BAYHTRL305*
BAYHTRL310*
BAYHTRL315*

11.24/14.96

BAYHTRL325*

18.72/24.92

2

73/83

80/90

BAYHTRL335*

26.20/34.88

2

99/113

100/125

BAYHTRL305*

5.00

1

12

15

BAYHTRL310*

9.96

1

19

20

BAYHTRL315*

14.96

1

27

30

BAYHTRL325*

24.92

2

42

45

BAYHTRL335*

34.88

2

57

60

BAYHTRLW05*

5.00

1

9

15

BAYHTRLW10*

9.96

1

16

20

BAYHTRLW15*

14.96

1

22

25

BAYHTRLW25*

24.92

2

34

35

BAYHTRLW35*

34.88

2

47

50

BAYHTRL305*

3.76/5.00

1

21/23

25/25

1

34/38

35/40

1

47/53

50/60

Unit Power
Supply

208-230/3/60

460/3/60

575/3/60

BAYHTRL310*

7.48/9.96

BAYHTRL315*

11.24/14.96

BAYHTRL325*

18.72/24.92

2

73/83

80/90

BAYHTRL335*

26.20/34.88

2

99/113

100/125

208-230/3/60

SSA-SVX06E-EN

Electrical Data

Table 16. Unit wiring with electric heat (single point connection) — 7.5-25 ton SZVAV and 2-Speed VFD air handlers —
60 Hz (continued)
Tons

10

10

10

10

10

12.5

12.5

12.5

12.5

12.5

Used With

TWE120D3*4, E3*4

TWE120D4*3, E4*3

TWE120D4*4, E4*4

TWE120DW*3, EW*3

TWE120DW*4, EW*4

TWE150E3*3

TWE150E3*4

TWE150E4*3

TWE150E4*4

TWE150EW*3

SSA-SVX06E-EN

Control
Stages

Minimum
Circuit
Ampacity

Maximum Fuse or
HACR Circuit
Breaker Size

3.76/5.00

1

25/27

30/30

7.48/9.96

1

38/42

40/45

1

38/57

40/60

18.72/24.92

2

77/87

80/90

BAYHTRL335*

26.20/34.88

2

103/117

110/125

BAYHTRL405*

5.00

1

12

15

BAYHTRL410*

9.96

1

19

20

BAYHTRL415*

14.96

1

27

30

BAYHTRL425*

24.92

2

42

45

BAYHTRL435*

34.88

2

57

60

BAYHTRL405*

5.00

1

14

15

BAYHTRL410*

9.96

1

21

25

Heater Model
Number

Heater KW
Rating

BAYHTRL305*
BAYHTRL310*
BAYHTRL315*

11.24/14.96

BAYHTRL325*

Unit Power
Supply

208-230/3/60

460/3/60

460/3/60

BAYHTRL415*

14.96

1

29

30

BAYHTRL425*

24.92

2

44

45

BAYHTRL435*

34.88

2

59

60

BAYHTRLW05*

5.00

1

9

15

BAYHTRLW10*

9.96

1

16

20

BAYHTRLW15*

14.96

1

22

25

BAYHTRLW25*

24.92

2

34

35

575/3/60

BAYHTRLW35*

34.88

2

47

50

BAYHTRLW05*

5.00

1

11

15

BAYHTRLW10*

9.96

1

18

20

BAYHTRLW15*

14.96

1

24

25

BAYHTRLW25*

24.92

2

36

40

BAYHTRLW35*

34.88

2

49

50

BAYHTRM310*

7.51/10.00

1

34/38

35/40

BAYHTRM320*

14.96/19.92

1

60/68

60/70

BAYHTRM330*

22.47/29.92

2

86/98

90/100

BAYHTRM350*

37.44/49.84

2

138/158

150/175
45/50

575/3/60

208-230/3/60

BAYHTRM310*

7.51/10.00

1

43/47

BAYHTRM320*

14.96/19.92

1

69/77

70/80

BAYHTRM330*

22.47/29.92

2

95/107

100/110

BAYHTRM350*

37.44/49.84

2

147/167

150/175

BAYHTRM410*

10.00

1

19

20

BAYHTRM420*

19.92

1

34

35

BAYHTRM430*

29.92

2

49

50

BAYHTRM450*

49.84

2

79

80

BAYHTRM410*

10.00

1

23

25

BAYHTRM420*

19.92

1

38

40

BAYHTRM430*

29.92

2

53

60

BAYHTRM450*

49.84

2

83

90

208-230/3/60

460/3/60

460/3/60

BAYHTRMW10*

10.00

1

16

20

BAYHTRMW20*

19.92

1

28

30

BAYHTRMW30*

29.92

2

41

45

BAYHTRMW50*

49.84

2

66

70

575/3/60

37

Electrical Data

Table 16. Unit wiring with electric heat (single point connection) — 7.5-25 ton SZVAV and 2-Speed VFD air handlers —
60 Hz (continued)
Tons

12.5

15

15

15

15

15

15

20

20

20

20

38

Used With

TWE150EW*4

TWE180E3*3

TWE180E3*4

TWE180E4*3

TWE180E4*4

TWE180EW*3

TWE180EW*4

TWE240E3*3

TWE240E3*4

TWE240E4*3

TWE240E4*4

Heater Model
Number

Heater KW
Rating

Unit Power
Supply

Control
Stages

Minimum
Circuit
Ampacity

Maximum Fuse or
HACR Circuit
Breaker Size

BAYHTRMW10*

10.00

1

19

20

BAYHTRMW20*

19.92

1

32

35

BAYHTRMW30*

29.92

2

44

45

BAYHTRMW50*

49.84

2

69

70

BAYHTRM310*

7.51/10.00

1

38/42

40/45

BAYHTRM320*

14.96/19.92

1

64/72

70/80

BAYHTRM330*

22.47/29.92

2

90/102

90/110

BAYHTRM350*

37.44/49.84

2

142/162

150/175

BAYHTRM310*

7.51/10.00

1

43/47

45/50

BAYHTRM320*

14.96/19.92

1

69/77

70/80

BAYHTRM330*

22.47/29.92

2

95/107

100/110

BAYHTRM350*

37.44/49.84

2

147/167

150/175

BAYHTRM410*

10.00

1

21

25

BAYHTRM420*

19.92

1

36

40

BAYHTRM430*

29.92

2

51

60

BAYHTRM450*

49.84

2

81

90

BAYHTRM410*

10.00

1

23

25

BAYHTRM420*

19.92

1

38

40

BAYHTRM430*

29.92

2

53

60

575/3/60

208-230/3/60

208-230/3/60

460/3/60

460/3/60

BAYHTRM450*

49.84

2

83

90

BAYHTRMW10*

10.00

1

18

20

BAYHTRMW20*

19.92

1

30

30

BAYHTRMW30*

29.92

2

43

45

BAYHTRMW50*

49.84

2

68

70

BAYHTRMW10*

10.00

1

19

20

BAYHTRMW20*

19.92

1

32

35

BAYHTRMW30*

29.92

2

44

45

575/3/60

575/3/60

BAYHTRMW50*

49.84

2

69

70

BAYHTRM310*

7.51/10.00

1

43/47

45/50

BAYHTRM320*

14.96/19.92

BAYHTRM330*

22.47/29.92

BAYHTRM350*
BAYHTRM310*

1

69/77

70/80

2

95/107

100/110

37.44/49.84

2

147/167

150/175

7.51/10.00

1

51/55

60/60

BAYHTRM320*

14.96/19.92

1

77/85

80/90

BAYHTRM330*

22.47/29.92

2

103/115

110/125

BAYHTRM350*

37.44/49.84

2

155/175

175/175

BAYHTRM410*

10.00

1

23

25

BAYHTRM420*

19.92

1

38

40

BAYHTRM430*

29.92

2

53

60

BAYHTRM450*

49.84

2

83

90

BAYHTRM410*

10.00

1

26

30

BAYHTRM420*

19.92

1

41

45

BAYHTRM430*

29.92

2

56

60

BAYHTRM450*

49.84

2

86

90

208-230/3/60

208-230/3/60

460/3/60

460/3/60

SSA-SVX06E-EN

Electrical Data

Table 16. Unit wiring with electric heat (single point connection) — 7.5-25 ton SZVAV and 2-Speed VFD air handlers —
60 Hz (continued)
Tons

20

20

25

25

25

Used With

TWE240EW*3

TWE240EW*4

TWE300E3*3

TWE300E4*3

TWE300EW*3

Heater Model
Number

Heater KW
Rating

Unit Power
Supply

Control
Stages

Minimum
Circuit
Ampacity

Maximum Fuse or
HACR Circuit
Breaker Size

BAYHTRMW10*

10.00

1

19

20

BAYHTRMW20*

19.92

1

32

35

BAYHTRMW30*

29.92

2

44

45

BAYHTRMW50*

49.84

2

69

70

BAYHTRMW10*

10.00

1

22

25

BAYHTRMW20*

19.92

1

34

35

BAYHTRMW30*

29.92

2

47

50

BAYHTRMW50*

49.84

2

72

80

BAYHTRM310*

7.51/10.00

1

51/55

60/60

BAYHTRM320*

14.96/19.92

BAYHTRM330*

22.47/29.92

BAYHTRM350*

575/3/60

575/3/60

1

77/85

80/90

2

103/115

110/125

37.44/49.84

2

155/175

175/175

BAYHTRM410*

10.00

1

26

30

BAYHTRM420*

19.92

1

41

45

BAYHTRM430*

29.92

2

56

60

BAYHTRM450*

49.84

2

86

90

BAYHTRMW10*

10.00

1

22

25

BAYHTRMW20*

19.92

1

34

35

BAYHTRMW30*

29.92

2

47

50

BAYHTRMW50*

49.84

2

72

80

208-230/3/60

460/3/60

575/3/60

Notes:
1. kW ratings are at: 208/240V for 208-230V air handlers; 480V for 460V air handlers; 600V for 575V air handlers. For other than rated
voltage, capacity = (voltage/rated voltage)2 x rated capacity.
2. Any power supply and circuits must be wired and protected in accordance with local codes.
3. Electric heat not available with 380/60 Hz models.
4. The HACR circuit breaker is for U.S.A. installations only.

SSA-SVX06E-EN

39

Electrical Data

50 Hz Models
Includes standard air handlers
Table 17. Electrical characteristics — standard motor — 50 Hz air handler
Standard Evaporator Fan Motor
Tons

Amps

Unit Model Number

4.6

TWE051DD

TWE076DD, ED

6.25

TWE101DD, ED

8.33

10.4

TWE126ED

13

TWE156ED

16.7

TWE201ED

20.9

TWE251ED

No.

Volts

Phase

1

380

1
1

FLA

LRA

3

1.4

8.0

415

3

1.0

8.4

380

3

3.1

17.0

1

415

3

3.2

16.8

1

380

3

3.4

17.3

1

415

3

3.2

19.0

1

380

3

3.2

35.0

1

415

3

3.1

35.0

1

380

3

4.0

33.1

1

415

3

4.0

36.1

1

380

3

8.0

43.2

1

415

3

8.0

48.6

1

380

3

7.5

71.0

1

415

3

7.2

77.0

Table 18. Unit wiring — air handler — 50 Hz
Tons

Unit Model
Number

Minimum Unit Operating
Voltage Range

Maximum Fuse
Circuit Ampacity
Ampacity

Size or Maximum
Circuit Breaker

4.6

TWE051DD

380/415

4

15

6.25

TWE076DD, ED

380/415

5

15

8.33

TWE101DD, ED

380/415

5

15

10.4

TWE126ED

380/415

5

15

13

TWE156ED

380/415

6

15

16.7

TWE201ED

380/415

10

15

20.9

TWE251ED

380/415

10

15

Table 19. Unit wiring with electric heat (single point connection) — air handlers
Heater
Model No.

Heater
kW Rating

BAYHTRL405*

5

To Use
with Unit

Control
Stages

Minimum
Circuit
Ampacity

Maximum
Fuse Breaker
Size

1

13

15

BAYHTRL410*

9.96

1

22

25

BAYHTRL415*

14.96

1

31

35

BAYHTRL425*

24.92

2

49

50

BAYHTRL405*

5

1

14

15

BAYHTRL410*

9.96

1

23

25

BAYHTRL415*

14.96

1

32

35

BAYHTRL425*

24.92

2

50

50

BAYHTRL435*

34.88

2

68

70

TWE051DD

40

TWE076DD, ED

SSA-SVX06E-EN

Electrical Data

Table 19. Unit wiring with electric heat (single point connection) — air handlers (continued)
BAYHTRL405*

5

1

14

15

1

23

25

1

32

35

BAYHTRL410*

9.96

BAYHTRL415*

14.96

BAYHTRL425*

24.92

2

50

50

BAYHTRL435*

34.88

2

68

70

TWE101DD,
TWE101ED

BAYHTRM410*

10

1

19

20

BAYHTRM420*

19.92

1

41

45

BAYHTRM430*

29.92

2

59

60

BAYHTRM450*

49.84

2

94

100

BAYHTRM410*

10

1

23

25

TWE126ED

BAYHTRM420*

19.92

1

41

45

BAYHTRM430*

29.92

2

59

60

BAYHTRM450*

49.84

2

95

100

TWE156ED

BAYHTRM410*

10

1

29

30

BAYHTRM420*

19.92

1

46

50

BAYHTRM430*

29.92

2

65

70

BAYHTRM450*

49.84

2

100

100

BAYHTRM410*

10

1

29

30

TWE201ED

BAYHTRM420*

19.92

1

46

50

BAYHTRM430*

29.92

2

65

70

BAYHTRM450*

49.84

2

100

100

TWE251ED

Notes:
1. Field wire must be rated at least 167°F (75°C).
2. Field wire must be rated at least 194°F (90°C).
3. Heater kW ratings are at 400v for 3 phase, 400v air handlers.
4. For other than rated voltage, capacity = (voltage/rated voltage)2 x rated capacity and kW = (voltage/rated voltage)
2 rated kW.
5. Any power supply and circuits must be wired and protected in accordance with local codes.
6. MCA and Maximum Fuse Size is based on 400V.

SSA-SVX06E-EN

41

Start-Up
Sequence of Operation
N OT I C E
Equipment Damage!
Ensure the disconnect for the indoor air handler is
closed before operating the system. Operating the
o u t d o o r u n i t w i t h o u t t h e i n d o o r f a n e n e r g i ze d ca n
cause unit trip-out on high pressure control and/or
l i q u i d f l o o d b a ck t o t h e c o m p r e s s o r.

demand and is also used to determine the proper
supply fan speed to meet the space requirements.
During active capacity control, the unit will utilize a +/3.5°F deadband around the active Discharge Air
Setpoint to determine when to request additional
cooling capacity. If the unit is maintaining the discharge
air temperature within the +/- 3.5°F deadband around
the calculated discharge air setpoint requirements, no
additional capacity will be requested.

Occupied Cooling Operation

Variable Air Volume Applications
(SZVAV)
Supply Fan Mode Operation
Units configured for SZVAV control will utilize Supply
Fan Mode selection as is currently implemented into
ReliaTel controls for normal Zone Control and will be
selectable between A U TO and O N via a connected
Zone Sensor module or through BAS/Network
controllers.

Supply Fan Mode Auto Operation
For active Cooling, and Heating operation the Supply
Fan will be commanded O N and will ramp up to the
appropriate minimum speed once the unit determines
that there is a request for capacity control. Once the
active request is cleared and all capacity is deenergized normal supply fan off delays as implemented
on constant volume units will be in effect. During the
Supply Fan Off-Delay, the supply fan will remain
energized for the predetermined time at the previous
unit function's minimum speed. All other cases which
would bring the Supply Fan O N will function as on
non-SZVAV units.

Supply Fan Mode ON Operation
For active unit control with the Supply Fan Mode set to
O N , the unit will energize the Supply Fan and hold the
Fan Speed output at minimum speed until there is a
request for the fan speed to increase. This will hold true
for all cases except during Unoccupied periods in
which the Supply Fan Mode is forced to A U TO and will
operate the Supply Fan as described above for all
Cooling, and Heating requests.

Supply Air Temperature Control - Cooling
For Cooling operation the unit will control the active
capacity outputs to meet a varying, calculated
Discharge Air Setpoint that is calculated based on zone
conditions in order to maintain the Zone Temperature
to the active Zone Setpoint. Note that this setpoint will
be clamped between the user selected DA Heat and DA
Cool setpoints for compressor control. In general, as
the zone temperature rises above the ZCSP, the Active
Discharge Air Setpoint will be calculated down. This
calculated setpoint is a direct indication of space
42

For normal Cooling operation, available Cooling
capacity will be staged or modulated in order to meet
the calculated discharge air setpoint between the user
selected upper and lower limits. If the current active
cooling capacity is controlling the discharge air within
the deadband no additional Cooling capacity change
will be requested. As the Discharge Air Temperature
rises above the deadband the control will request
additional capacity as required (additional compressor
operation). As the Discharge Air Temperature falls
below the deadband the algorithm will request a
reduction in active capacity.

Compressor Cooling
Compressor output control and protection schemes
will function similar to non-SZVAV units. Normal
compressor HPC and LPC control will remain in effect
as well as normal 3-minute minimum on, off, and interstage timers. Also, the condenser fans will be
controlled similar to non-SZVAV units.

Cooling Sequence
If the control determines that there is a need for
compressor stages in order to meet the discharge air
requirements, once supply fan proving has been made,
the unit will begin to stage compressors accordingly.
Note that a 5 second delay will be enforced between
the command for supply fan output operation and the
command for compressor output operation. This delay
is enforced to ensure that the supply fan is energized
and ramping up to operating speed prior to energizing
compressors.
As the zone cooling demand continues to increase, if
additional capacity is required, the supply fan output
will be modulated above minimum speed in order to
meet the zone requirements. Note that the supply fan
speed will remain at the compressor stage's associated
minimum value until the control requires additional
capacity to meet the zone demand.
As the cooling load in the zone decreases the control
will reduce the speed of the fan down to minimum per
compressor stage and control the compressor outputs
accordingly. As the compressors begin to de-energize,
the Supply Fan speed will fall back to the Cooling
Stage's associated minimum fan speed but not below.
As the load in the zone continues to drop, cooling
SSA-SVX06E-EN

S t a rt - U p

capacity will be reduced in order to maintain the
calculated discharge air setpoint.

Cooling Stages Minimum Fan Speed
As the unit begins to stage compressors to meet the
cooling demand, the following minimum Supply Fan
Speeds will be utilized for each corresponding Cooling
Stage. Note that the Supply Fan Speed will be allowed
to ramp up beyond the minimum speed in order to
meet the zone cooling demand. The minimum fan
speed for units with 2 stages of DX Cooling will be 58%
of the unit's full airflow capacity. At Stage 1 of DX
Cooling the Fan Speed will be at a minimum of 58%
and at Stage 2 of DX Cooling the Fan Speed will be at a
minimum of 80%.

Occupied Heating Operation
Occupied Heating operation on units configured with
SZVAV control will utilize two separate control
methodologies based on heating configurations. For all
"Staged" Heating types (Electric and Gas), the unit will
utilize 100% full airflow during all active heating
periods like traditional Constant Volume units. For
Modulating Gas heat units, the unit will have the ability
to control the discharge air temperature to the
calculated discharge air heating setpoint in order to
maintain the Zone Temperature to the Zone Heating
setpoint.

Staged Heating Operation
For units configured with Mechanical or Auxiliary Heat
once the control determines that there is an active
heating capacity request, the unit will energize the
Supply Fan and ramp up to full speed. The control
methodology during Active Heating will be identical to
traditional Constant Volume units; heating stages will
be energized/de-energized to meet the Zone Heating
demand. Note that all Electric staging sequences will
be identical to Constant Volume units.

Unoccupied Cooling and Heating Operation
For SZVAV units, the unit will control Heating and
Cooling, as during Occupied periods using the normal
heating and cooling SZVAV algorithms. In Unoccupied
periods the unit will utilize setback setpoints, and Auto
fan mode operation as on normal Constant Volume
units.

special handling of the Supply Fan Speed on units
configured with SZVAV. See below for a list of these
conditions:
1. S u p p l y F a n P r o v i n g F a i l u r e - If a Supply Fan
Proving failure is detected the Supply Fan will be
de-energized after 40s of run time and the Fan
Speed output will go to the corresponding
minimum speed voltage.
2. Z o n e Te m p e r a t u r e Se n s o r F a i l u r e - If the Active
Zone Temperature input goes out of range, the unit
will discontinue all Heating, Cooling, and
Dehumidification operation.
3. S u p p l y A i r Te m p e r a t u r e S e n s o r F a i l u r e - If the
Supply Air Temperature input goes out of range,
the unit will revert back to Full Airflow, Traditional
CV control. The unit will call out a Supply Air
Temperature Sensor Failure Alarm, the RTRM
System LED will flash the 2-blink error code, and
Cool LEDs will flash.

2–Speed VFD Applications
General Description of Functionality
Cooling Operation (DX Cooling)
Units with a 2-Speed VFD control scheme will utilize a
thermostat's heating and cooling outputs to
differentiate between high and low speed. When the
unit receives a G or Y1 call from the thermostat the
supply fan will run at the user selected low speed. Once
the zone load demands the second stage of cooling,
and the unit receives the Y2 call from the thermostat
the supply fan will be signaled to run at the user
selected high speed. All other compressor staging will
be handled the same as all standard thermostat
controlled units.

Heating Operation
Units with 2-Speed VFD controls will utilize traditional
CV Heating control schemes with full airflow provided
based on the customer selected VFD controlled
maximum speed. When the unit receives the W1 call
from the thermostat a relay will signal the supply fan to
run at high speed. All the electric heaters that can be
outfitted in the field are wired up to interlock W1 and
W2 so the supply fan will always run at the user
selected high speed during heat modes.

Failure and Overriding Conditions
Certain failure and overriding conditions require

SSA-SVX06E-EN

43

Maintenance
Perform all of the indicated maintenance procedures at
the intervals scheduled. This will prolong the life of the
unit and reduce the possibility of costly equipment
failure.

Fan Belt Adjustment
WA R N I N G
Ro t a t i n g C o m p on e n t s !
D i s c o n n e c t a l l e l e c t r i c p o w e r, i n c l u d i n g r e m o t e
di sc o nne c ts be for e s erv i c in g. Fo ll ow p rop er
l o ck o u t / t a g o u t p r o c e d u r e s t o e n s u r e t h e p o w e r
c a n n o t b e i n a d v e rt e n t l y e n e r g i z e d .
The fan belts must be inspected periodically to assure
proper unit operation. Replacement is necessary if the
belts appear frayed or worn.

gauge plunger.
4. Place the large end of the gauge at the center of the
belt span; then depress the gauge plunger until the
large O-ring is even with the top of the next belt or
even with a straightedge placed across the fan and
motor sheaves.
5. Remove the belt tension gauge. The small
O-ring now indicates a number other than zero on
the plunger’s force scale. This number represents
the force (in pounds) required to give the needed
deflection.
6. Compare the “force” scale reading (Step 5) with the
appropriate “force” value listed in the Belt tension
table. If the “force” reading is outside the range,
readjust the belt tension.
N o t e : Actual belt deflection “force” must not
exceed the maximum “force” value shown in
Figure 27, p. 44.

When removing or installing the new belts, do not
stretch them over the sheaves. Loosen the belts using
the belt tension adjustment bolts on the motor
mounting base.
Once the new belts are installed, using a Browning or
Gates tension gauge (or equivalent), adjust the belt
tension as follows:

Recheck the belt tension at least twice during the
first 2 to 3 days of operation. Belt tension may
decrease until the new belts are “run in”.
Figure 27. Belt tension gauge

1. To determine the appropriate belt deflection:
a. Measure the center-to-center shaft distance (in
inches) between the fan and motor sheaves.
b. Divide the distance measured in Step 1a by 64;
the resulting value represents the amount of
belt deflection that corresponds to the proper
belt tension.
2. Set the large O-ring on the belt tension gauge at the
deflection value determined in Step 1b.
3. Set the small O-ring at zero on the force scale of the
Table 20. Belt tension measurement and deflection
Deflection Force (Lbs.)
Belts Cross
Section

A

B

Small Pitch
Diameter Range

Standard V-Belt

V-Belt with Molded Notches

Min.

Max.

Min.

Max.

3.0 - 3.6

3

4-1/2

3-7/8

5-1/2

3.8 - 4.8

3-1/2

5

4-1/2

6-1/4

5.0 - 7.0

4

5-1/2

5

6-7/8

3.4 - 4.2

4

5-1/2

5-3/4

8

4.4 - 5.6

5-1/8

7-1/8

6-1/2

9-1/8

5.8 - 8.8

6-3/8

8-3/4

7-3/8

10-1/8

Monthly
The following warning complies with State of
California law, Proposition 65.
44

SSA-SVX06E-EN

Maintenance

WA R N I N G

Inspect air filters and clean (or replace) if necessary.
Check unit wiring to ensure all connections are tight
and that the wiring insulation is intact.

H a z a r d o u s Vo l t a g e w / C a p a c i t o r s !
D i s c o n n e c t a l l e l e c t r i c p o w e r, i n c l u d i n g r e m o t e
d i s c o n n e c t s a n d d i s ch a r g e a l l m o t o r s t a rt / r u n
c a p a c i t o r s b e f o r e s e r v i c i n g . F o l l o w p r o p e r l o ck o u t /
tagout procedures to ensure the power cannot be
i n a d v e rt e n t l y e n e r g i z e d . F o r v a r i a b l e f r e q u e n c y
dri ves or other energy storing components
p r o v i d e d b y Tr a n e o r o t h e r s , r e f e r t o t h e
a p p r o p r i a t e m a n u f a c t u r e r ’s l i t e r a t u r e f o r
a l l o w a b l e w a i t i n g p e r i o d s f o r d i s ch a r g e o f
c a p a c i t o r s . Ve r i f y w i t h a n a p p r o p r i a t e v o l t m e t e r
t h a t a l l c a p a c i t o r s h a v e d i s ch a r g e d .
For ad di ti on al i n for m at io n rega rdi ng t he s a fe
d i s ch a r g e o f c a p a c i t o r s , s e e P R O D - S V B 0 6 A - E N .

N OT I C E
O p e r a t i n g U n d e r Va c u u m !

Check drain pans and condensate piping to insure
they are free of obstacles.
Manually rotate the indoor fan to ensure proper
operation.
Inspect the evaporator coils for dirt and debris. If
the coils appear dirty, clean them.
Observe indoor fan operation and correct any
unusual or excessive vibration. Clean blower
wheels as needed.

Annually (Cooling Season)
The following maintenance procedures must be
performed at the beginning of each cooling season to
ensure efficient unit operation:
Perform all of the monthly maintenance
inspections.

Do not operate or apply power to the compressor
while under a vacuum.

With the unit operating, check unit superheat and
record the reading in the “Maintenance Log,” p. 46

WA R N I N G
F i b e r g l a s s Wo o l !

Remove any accumulation of dust and/or dirt from
the unit casing.

Yo u M U S T w e a r a l l n e c e s s a r y Pe r s o n a l P r o t e c t i v e
Equ ip men t (PP E) i ncl udi ng g lov es, e y e pro te cti on,
a N I O S H a p p r o v e d d u s t / m i s t r e s p i r a t o r, l o n g
sleeves and pants when working with products
containing fiberglass wool.

Remove corrosion from any surface and repaint.
Check the gasket around the control panel door to
ensure it fits correctly and is in good condition to
prevent water leakage.
Inspect the evaporator fan belt. If it is worn or
frayed, replace it.

Pr e c a u t i o n a r y M e a s u r e s :
•

Av o i d b r e a t h i n g f i b e r g l a s s d u s t .

•

U s e a N I O S H a p p r ov e d d u s t / m i s t r e s p i r a t o r.

•

Av o i d c o n t a c t w i t h t h e s k i n o r e y e s . We a r
l o n g - s l e e v e d , l o o s e - f i tt i n g c l o t h i n g , g l o v e s ,
and eye protection.

•

Wa s h c l o t h e s s e p a r a t e l y f r o m o t h e r c l o t h i n g ;
r i n s e w a s h e r t h o r o u g h l y.

•

O p e r a t i o n s s u ch a s s a w i n g , b l o w i n g , t e a rout, and spraying may generate fiber
concentrations requiring additional
respiratory protection. Use the appropriate
N I O S H a p p r ov e d r e s p i r a t o r.

Fir st Aid Measures:
•

•

Ey e C ont ac t - F lu sh e y es wi th wat e r to
re move dust. If sy mpt oms p er si st , see k
m e d i c a l a tt e n t i o n .
S k i n C o n t a c t - Wa s h a ff e c t e d a r e a s g e n t l y
w i t h s o a p a n d w a r m w a t e r a ft e r h a n d l i n g .

Inspect the control panel wiring to ensure that all
connections are tight and that the insulation is
intact.
Check refrigerant piping and fittings for leaks.
Inspect the evaporator coils for dirt and debris. If
the coils appear dirty, clean them.

Coil Cleaning
Regular coil maintenance, including annual cleaningenhances the unit's operating efficiency by minimizing:
•
•
•
•

compressor head pressure and amperage draw
water carryover
fan brake horsepower
static pressure losses

At least once each year — or more often if the unit is
located in a “dirty” environment — clean the coil using
the instructions outlined below. Be sure to follow these
instructions as closely as possible to avoid damaging
the coils.

Conduct the following maintenance inspections once
per month:

SSA-SVX06E-EN

45

46

Dry
Bulb

Wet
Bulb
(C1)

(C2)

Suction Pressure
(C1)

(C2)

Discharge Pressure

Compressor

Note: Perform each inspection once per month (during cooling season) while unit is operating

Date

Ambient
Temp.
(°F)

Evaporator Entering Air

Circuit #1

Circuit #2

Superheat (°F)
(at compressor)

Circuit #1

Circuit #2

Subcooling (°F)
(at service valve)

Maintenance

Maintenance Log

SSA-SVX06E-EN

Wiring Diagram Matrix
Table 21. Wiring schematics for TWE air handlers
Electromechanical
(Sd)

Electromechanical
(2 speed)

Reliatel

Schematic/
Connection

Schematic

Connection

Schematic

Connection

3

2313-0401

N/A

N/A

N/A

N/A

3

2313-0401

N/A

N/A

N/A

N/A

60

3

2313-0401

N/A

N/A

N/A

N/A

575

60

3

2313-0401

N/A

N/A

N/A

N/A

380

Model No.

Ton Circuit

Volts

Hz Ph

TWE051DD

4.6

Single

380-415 50

TWE061D3

5

Single

208-230 60

TWE061D4

5

Single

460

TWE061DW

5

Single

TWE061DK

5

Single

60

3

2313-0401

N/A

N/A

N/A

N/A

TTA076DD

6.25

Single

380-415 50

3

2313-0401

N/A

N/A

N/A

N/A

TWE061D1

5

Single

208-230 60

1

2313-0402

N/A

N/A

N/A

N/A

TWE090D1

7.5

Single

208-230 60

1

2313-0402

N/A

N/A

N/A

N/A

TWE120D1

10

Single

208-230 60

1

2313-0402

N/A

N/A

N/A

N/A

TWE061E3

5

Dual

208-230 60

3

2313-0431

N/A

N/A

N/A

N/A

TWE061E4

5

Dual

460

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE061EW

5

Dual

575

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE061EK

5

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE061E1

5

Dual

208-230 60

1

2313-0432

N/A

N/A

N/A

N/A

TWE090E1

7.5

Dual

208-230 60

1

2313-0432

N/A

N/A

N/A

N/A

TWE120E1

10

Dual

208-230 60

1

2313-0432

N/A

N/A

N/A

N/A

TWE090D3

7.5

Single

208-230 60

3

2313-0401

2313-0451

2313-0453

1213-1400

1213-1401

TWE090D4

7.5

Single

460

60

3

2313-0401

2313-0451

2313-0453

1213-1400

1213-1401

TWE090DW

7.5

Single

575

60

3

2313-0401

2313-0451

2313-0453

1213-1400

1213-1401

TWE090DK

7.5

Single

380

60

3

2313-0401

N/A

N/A

N/A

N/A

TWE090E3

7.5

Dual

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE090E4

7.5

Dual

208-230 60
460

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE090EW

7.5

Dual

575

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE090EK

7.5

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE101DD

8.33

Single

380-415 50

3

2313-0401

N/A

N/A

N/A

N/A

TWE101ED

8.33

Dual

380-415 50

3

2313-0431

N/A

N/A

N/A

N/A

TWE120D3

10

Single

208-230 60

3

2313-0401

2313-0451

2313-0453

1213-1400

1213-1401
1213-1401

TWE120DW

10

Single

575

60

3

2313-0401

2313-0451

2313-0453

1213-1400

TWE120DK

10

Single

380

60

3

2313-0401

N/A

N/A

N/A

N/A

TWE120E3

10

Dual

208-230 60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE120EW

10

Dual

575

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE120EK

10

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE126ED

10.4

Dual

380-415 50

3

2313-0431

N/A

N/A

N/A

N/A

TWE150E3

12.5

Dual

208-230 60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE150EW

12.5

Dual

575

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE150EK

12.5

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE156ED

13

Dual

380-415 50

3

2313-0431

N/A

N/A

N/A

N/A

TWE180E3

15

Dual

208-230 60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE180EW

15

Dual

575

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE180EK

15

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE201ED

16.7

Dual

380-415 50

3

2313-0431

N/A

N/A

N/A

N/A

TWE240E3

20

Dual

208-230 60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

380-415 60

TWE240E4

20

Dual

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE240EW

20

Dual

575

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE240EK

20

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

TWE251ED

20.9

Dual

380-415 50

3

2313-0431

N/A

N/A

N/A

N/A

SSA-SVX06E-EN

47

Wiring Diagram Matrix

Table 21. Wiring schematics for TWE air handlers (continued)
Electromechanical
(Sd)
Model No.

Ton Circuit

Volts

Hz Ph

Electromechanical
(2 speed)

Reliatel

Schematic/
Connection

Schematic

Connection

Schematic

Connection

TWE300E3

25

Dual

208-230 60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE300E4

25

Dual

380-415 50

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE300EW

25

Dual

575

60

3

2313-0431

2313-0451

2313-0453

1213-1400

1213-1401

TWE300EK

25

Dual

380

60

3

2313-0431

N/A

N/A

N/A

N/A

Note: Wiring diagrams are available through e-Library or by contacting your local sales office.

The manufacturer optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand,
the leader in creating and sustaining safe, comfortable and energy efficient environments, the manufacturer offers a
broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more
information, visit www.IRCO.com.
The manufacturer has a policy of continuous product and product data improvements and reserves the right to change design and specifications without notice.
©2015 Trane

All rights reserved

SSA-SVX06E-EN 02 Mar 2015

We are committed to using environmentally

Supersedes SSA-SVX06D-EN (January 2014)

conscious print practices that reduce waste.



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